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Question 1
Correct
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A 7-year-old girl visits her GP clinic with her mother who is worried about her continued bedwetting at night. They had visited the clinic 4 weeks ago and have seen no improvement despite following general management advice and a basic reward system. The girl is healthy otherwise and has no history of constipation or daytime incontinence. She does not complain of any issues at home or school. Physical examination reveals no abnormalities.
What additional treatment options would you suggest for her?Your Answer: Enuresis alarm
Explanation:When general management advice has not been effective for nocturnal enuresis, an enuresis alarm is typically the first-line recommendation. This device detects urine moisture and triggers an alarm (either through sound or vibration) to wake the child and prompt them to use the toilet. Enuresis alarms have a high success rate when used consistently, and a review is typically conducted after four weeks to assess progress. Bladder training and retention control training are not recommended by NICE guidelines due to limited evidence and concerns about promoting voiding dysfunction. Desmopressin, a vasopressin analogue that reduces urine production, may be considered if the family is not receptive to or finds an enuresis alarm ineffective. However, an enuresis alarm should be offered first. Desmopressin can provide short-term control, but it can cause hyponatremia. Desmopressin plus oxybutynin may be helpful if there are daytime symptoms or if desmopressin alone does not improve the condition. As not all anticholinergic medications have UK marketing authorization for bedwetting treatment, a healthcare professional with appropriate expertise should manage this combination, often requiring a specialist referral and further investigations.
Nocturnal enuresis, or bedwetting, is when a child involuntarily urinates during the night. Most children achieve continence by the age of 3 or 4, so enuresis is defined as the involuntary discharge of urine in a child aged 5 or older without any underlying medical conditions. Enuresis can be primary, meaning the child has never achieved continence, or secondary, meaning the child has been dry for at least 6 months before.
When managing bedwetting, it’s important to look for any underlying causes or triggers, such as constipation, diabetes mellitus, or recent onset UTIs. General advice includes monitoring fluid intake and encouraging regular toileting patterns, such as emptying the bladder before sleep. Reward systems, like star charts, can also be helpful, but should be given for agreed behavior rather than dry nights.
The first-line treatment for bedwetting is an enuresis alarm, which has a high success rate. These alarms have sensor pads that detect wetness and wake the child up to use the toilet. If short-term control is needed, such as for sleepovers, or if the alarm is ineffective or not acceptable to the family, desmopressin may be prescribed. Overall, managing bedwetting involves identifying any underlying causes and implementing strategies to promote continence.
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This question is part of the following fields:
- Paediatrics
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Question 2
Incorrect
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A 50-year-old businessman comes to the clinic complaining of watery, non-bloody diarrhea, anorexia, and abdominal bloating that has been going on for 10 days. He recently returned from a trip to India and his symptoms started 3 days after his return. Upon examination, he has dry mucous membranes but normal skin turgor and no fever. What is the probable organism responsible for his symptoms?
Your Answer: Salmonella
Correct Answer: Giardia lamblia
Explanation:The symptoms experienced by the patient, such as bloating and watery diarrhoea lasting for an extended period, suggest that the cause of their illness is Giardiasis rather than the more typical culprit, Escherichia coli, which is commonly associated with travellers’ diarrhoea.
Understanding Giardiasis
Giardiasis is a condition caused by a type of protozoan called Giardia lamblia. It is transmitted through the faeco-oral route and can be contracted through various means such as foreign travel, drinking water from rivers or lakes, and even male-male sexual contact. While some individuals may not experience any symptoms, others may suffer from non-bloody diarrhea, bloating, abdominal pain, lethargy, flatulence, and weight loss. In severe cases, malabsorption and lactose intolerance may occur. Diagnosis can be made through stool microscopy, stool antigen detection assay, or PCR assays. Treatment typically involves the use of metronidazole.
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This question is part of the following fields:
- Infectious Diseases
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Question 3
Correct
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A 45-year-old man complains of pain and redness around his first metatarsophalangeal joint. Which medication is most likely responsible for this symptom?
Your Answer: Furosemide
Explanation:Causes of Gout: Medications and Other Factors
Gout is a type of joint inflammation that occurs due to the accumulation of monosodium urate monohydrate crystals in the synovium. This condition is caused by chronic hyperuricemia, which is characterized by high levels of uric acid in the blood (above 0.45 mmol/l).
Several medications and other factors can contribute to the development of gout. Diuretics such as thiazides and furosemide, as well as immunosuppressant drugs like ciclosporin, can increase the risk of gout. Alcohol consumption, cytotoxic agents, and pyrazinamide are also known to be associated with gout.
In addition, low-dose aspirin has been found to increase the risk of gout attacks, according to a systematic review. However, this risk needs to be weighed against the cardiovascular benefits of aspirin. Patients who are prescribed allopurinol, a medication used to treat gout, are not at an increased risk of gout attacks when taking low-dose aspirin.
Overall, it is important to be aware of the potential causes of gout, including medications and lifestyle factors, in order to prevent and manage this condition effectively.
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This question is part of the following fields:
- Musculoskeletal
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Question 4
Correct
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A 12-year-old boy visits his General Practitioner with complaints of a sore throat, fever and cervical lymphadenopathy. The doctor prescribes amoxicillin. After four days of taking the antibiotics, the boy develops a highly itchy, maculopapular rash. His blood tests from four days ago reveal a lymphocytosis. What is the most probable diagnosis?
Your Answer: Glandular fever
Explanation:Diagnosing Glandular Fever: Understanding Symptoms and Differential Diagnosis
Glandular fever, also known as infectious mononucleosis, is a viral illness that can cause a range of symptoms, including fever, sore throat, fatigue, and swollen lymph nodes. One common symptom is the development of a maculopapular rash, which can be triggered by taking penicillin. However, it is important to consider other potential diagnoses and rule out conditions such as dermatitis herpetiformis, allergy to penicillin, herpes zoster, and streptococcal throat infection.
To confirm a diagnosis of glandular fever, healthcare providers may perform a full blood count to check for lymphocytosis and atypical lymphocytes. Epstein-Barr virus (EBV) serology may also be tested in certain cases. Treatment for glandular fever is primarily supportive, and patients are advised to avoid contact sports to reduce the risk of splenic rupture.
By understanding the symptoms and differential diagnosis of glandular fever, healthcare providers can accurately diagnose and manage this viral illness.
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This question is part of the following fields:
- Paediatrics
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Question 5
Correct
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As you review the blood results of a 65-year-old man who has been diagnosed with hypertension, you notice that a HbA1c level was requested as part of the routine work-up. What HbA1c range would be indicative of prediabetes?
Your Answer: 42-47 mmol/mol (6.0-6.4%)
Explanation:Understanding Prediabetes and Impaired Glucose Regulation
Prediabetes is a term used to describe impaired glucose levels that are higher than normal but not yet high enough to be diagnosed as diabetes mellitus. This includes individuals with impaired fasting glucose (IFG) or impaired glucose tolerance (IGT). Diabetes UK estimates that around 1 in 7 adults in the UK have prediabetes, and many of them will eventually develop type 2 diabetes mellitus (T2DM), putting them at risk of microvascular and macrovascular complications.
To identify patients with prediabetes, NICE recommends using a validated computer-based risk assessment tool for adults aged 40 and over, people of South Asian and Chinese descent aged 25-39, and adults with conditions that increase the risk of T2DM. Patients identified as high risk should have a blood sample taken, and a fasting plasma glucose of 6.1-6.9 mmol/l or an HbA1c level of 42-47 mmol/mol (6.0-6.4%) indicates high risk.
Lifestyle modifications such as weight loss, increased exercise, and changes in diet are recommended for managing prediabetes. NICE also recommends metformin for adults at high risk who are still progressing towards T2DM despite lifestyle changes.
There are two main types of impaired glucose regulation: impaired fasting glucose (IFG) and impaired glucose tolerance (IGT). IFG is due to hepatic insulin resistance, while IGT is due to muscle insulin resistance. Patients with IGT are more likely to develop T2DM and cardiovascular disease than those with IFG.
To rule out a diagnosis of diabetes, people with IFG should be offered an oral glucose tolerance test. A result below 11.1 mmol/l but above 7.8 mmol/l indicates that the person doesn’t have diabetes but does have IGT. It is important to understand prediabetes and impaired glucose regulation to prevent the progression to T2DM and its associated complications.
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This question is part of the following fields:
- Endocrinology/Metabolic Disease
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Question 6
Correct
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A 45-year-old patient with asthma has been stable on salbutamol when required. Recently she has been experiencing shortness of breath during exercise and is using the salbutamol inhaler three times a week. She has a good inhaler technique.
Which of the following is the next step in her treatment?Your Answer: Addition of inhaled corticosteroids
Explanation:Choosing the Next Step in Asthma Treatment: Addition of Inhaled Corticosteroids
According to the Scottish Intercollegiate Guidelines Network (SIGN)/British Thoracic Society (BTS) guidance, patients with asthma who have had an attack in the last two years, use inhaled β2 agonists three times or more a week, are symptomatic three times or more a week, or wake up one night a week should move to the next step of treatment. The preferred next step is the addition of inhaled corticosteroids, which should be titrated to the smallest effective dose while maintaining symptom control.
While an oral leukotriene-receptor antagonist is suggested as an alternative next step if the patient cannot take inhaled corticosteroids, it is not as effective as inhaled corticosteroids. Oral corticosteroids are not recommended as they have many side effects and are not necessary in this scenario.
An inhaled long-acting β2 agonist would be appropriate for the third step of treatment, but this patient should move to the second step, which involves inhaled corticosteroids and continuing as required salbutamol. Simply increasing the salbutamol dose would be inappropriate and not in line with guidance. This patient requires both preventer and reliever therapy to effectively manage her asthma.
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This question is part of the following fields:
- Respiratory Medicine
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Question 7
Correct
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A 25-year-old man presents to the emergency department after consuming a cake containing hazelnut chocolate spread. He has a known allergy to tree nuts and has previously been hospitalized due to an anaphylactic reaction.
Upon examination, he displays a widespread, confluent erythematous urticarial rash at flexor sites. He is speaking in full sentences and has no signs of oral or peri-oral edema. There is no audible wheeze.
His vital signs indicate a respiratory rate of 22 breaths/min, 98% oxygen saturation in room air, a heart rate of 115 beats/min, and a blood pressure of 97/68 mmHg.
What is the most appropriate initial management for this patient?Your Answer: IM adrenaline only
Explanation:In cases of anaphylaxis, the most crucial drug to administer is IM adrenaline, even if the patient does not have breathing difficulties. This patient is displaying signs of anaphylaxis, such as tachycardia and hypotension. The recommended site for administering IM adrenaline is the anterolateral aspect of the middle third of the thigh. If the patient responds well to the first dose, they may be discharged after two hours of symptom resolution.
IV chlorphenamine is no longer part of the initial management for anaphylaxis. Instead, non-sedating oral antihistamines are preferred after initial treatment. IV chlorphenamine may be used later in management if IM adrenaline is insufficient, and it can be continued orally or by injection for 24-48 hours to prevent relapse.
IV hydrocortisone was previously recommended as an adjuvant drug in the management of acute anaphylaxis. However, due to the lack of evidence and delayed onset of action, it is no longer recommended in the initial management of anaphylaxis.
Oral chlorphenamine is not the first-line treatment for anaphylaxis due to its sedating properties. Non-sedating oral antihistamines, such as cetirizine, are preferred in the management of allergic reactions and in stabilized patients after acute anaphylaxis has resolved (2021 Resus Council Guidelines). If the patient’s urticaria symptoms persist, a non-sedating antihistamine may be prescribed.
Anaphylaxis is a severe and potentially life-threatening allergic reaction that affects the entire body. It can be caused by various triggers, including food, drugs, and insect venom. The symptoms of anaphylaxis typically occur suddenly and progress rapidly, affecting the airway, breathing, and circulation. Common signs include swelling of the throat and tongue, hoarse voice, respiratory wheeze, dyspnea, hypotension, and tachycardia. In addition, around 80-90% of patients experience skin and mucosal changes, such as generalized pruritus, erythematous rash, or urticaria.
The management of anaphylaxis requires prompt and decisive action, as it is a medical emergency. The Resuscitation Council guidelines recommend intramuscular adrenaline as the most important drug for treating anaphylaxis. The recommended doses of adrenaline vary depending on the patient’s age, ranging from 100-150 micrograms for infants under 6 months to 500 micrograms for adults and children over 12 years. Adrenaline can be repeated every 5 minutes if necessary, and the best site for injection is the anterolateral aspect of the middle third of the thigh. In cases of refractory anaphylaxis, IV fluids and expert help should be sought.
Following stabilisation, patients may be given non-sedating oral antihistamines to manage persisting skin symptoms. It is important to refer all patients with a new diagnosis of anaphylaxis to a specialist allergy clinic and provide them with an adrenaline injector as an interim measure before the specialist assessment. Patients should also be prescribed two adrenaline auto-injectors and trained on how to use them. A risk-stratified approach to discharge should be taken, as biphasic reactions can occur in up to 20% of patients. The Resus Council UK recommends a fast-track discharge for patients who have had a good response to a single dose of adrenaline and complete resolution of symptoms, while those who require two doses of IM adrenaline or have a history of biphasic reaction should be observed for at least 12 hours following symptom resolution.
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This question is part of the following fields:
- Immunology/Allergy
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Question 8
Incorrect
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Which one of the following is not a characteristic of essential tremor?
Your Answer: Worse on intentional movement
Correct Answer: Autosomal recessive inheritance
Explanation:When arms are extended, essential tremor worsens, but it improves with the use of alcohol and propranolol. This is an autosomal dominant condition.
Understanding Essential Tremor
Essential tremor, also known as benign essential tremor, is a genetic condition that typically affects both upper limbs. The most common symptom is a postural tremor, which worsens when the arms are outstretched. However, the tremor can be improved by rest and alcohol consumption. Essential tremor is also the leading cause of head tremors, known as titubation.
When it comes to managing essential tremor, the first-line treatment is propranolol. This medication can help reduce the severity of the tremors. In some cases, primidone may also be used to manage the condition. It’s important to note that essential tremor is a lifelong condition, but with proper management, individuals can lead a normal life. By understanding the symptoms and treatment options, those with essential tremor can take control of their condition and improve their quality of life.
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This question is part of the following fields:
- Neurology
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Question 9
Correct
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A 49-year-old man comes to the emergency department complaining of dizziness and shortness of breath on exertion for the past 3 days. He reports experiencing palpitations during this time but denies any chest pain or cough. The patient has a history of hypertension and angina, for which he takes amlodipine and GTN spray, respectively. Upon examination, he appears alert and oriented, but his vital signs reveal a heart rate of 170 BPM, respiratory rate of 25 breaths/min, and blood pressure of 72/50 mmHg. An ECG shows a narrow complex irregular tachycardia without P waves. What is the most crucial next step in management?
Your Answer: Electrical cardioversion
Explanation:In the case of an acute presentation of atrial fibrillation with signs of haemodynamic instability such as hypotension or heart failure, the correct treatment is electrical cardioversion. This is because the patient is at risk of going into cardiac arrest and needs to be returned to normal sinus rhythm immediately to prevent end organ damage. Giving a bolus of IV saline is not recommended as it will not push more blood into the ventricles and could even be harmful. Starting high dose aspirin or bisoprolol is not appropriate in this situation. Digoxin is only considered as a second line treatment for stable patients, so pharmacologic therapies are not considered until after cardioversion has been attempted and blood pressure returns to normal.
Atrial fibrillation (AF) is a condition that requires careful management to prevent complications. The latest guidelines from NICE recommend that patients presenting with AF should be assessed for haemodynamic instability, and if present, electrically cardioverted. For haemodynamically stable patients, the management depends on how acute the AF is. If the AF has been present for less than 48 hours, rate or rhythm control may be considered. However, if it has been present for 48 hours or more, or the onset is uncertain, rate control is recommended. If long-term rhythm control is being considered, cardioversion should be delayed until the patient has been maintained on therapeutic anticoagulation for at least 3 weeks.
Rate control is the first-line treatment strategy for AF, except in certain cases. Medications such as beta-blockers, calcium channel blockers, and digoxin can be used to control the heart rate. However, digoxin is no longer considered first-line as it is less effective at controlling the heart rate during exercise. Rhythm control agents such as beta-blockers, dronedarone, and amiodarone can be used to maintain sinus rhythm in patients with a history of AF. Catheter ablation is recommended for those who have not responded to or wish to avoid antiarrhythmic medication.
The aim of catheter ablation is to ablate the faulty electrical pathways that are causing AF. The procedure is performed percutaneously, typically via the groin, and can use radiofrequency or cryotherapy to ablate the tissue. Anticoagulation should be used 4 weeks before and during the procedure. It is important to note that catheter ablation controls the rhythm but does not reduce the stroke risk, so patients still require anticoagulation as per their CHA2DS2-VASc score. Complications of catheter ablation can include cardiac tamponade, stroke, and pulmonary vein stenosis. The success rate of the procedure is around 50% for early recurrence within 3 months, and around 55% of patients who’ve had a single procedure remain in sinus rhythm after 3 years. Of patients who’ve undergone multiple procedures, around 80% are in sinus rhythm.
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This question is part of the following fields:
- Cardiovascular
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Question 10
Incorrect
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A 48-year-old woman visits her GP complaining of back pain that has persisted for 4 weeks despite taking various painkillers. She has a history of coeliac disease and mild vitamin D deficiency, and she smokes 10 cigarettes daily. During the examination, the GP notes tenderness in the T8 vertebrae without any visible deformity, and the patient's vital signs are normal. There are no abnormalities in her neurological examination. What is the concerning feature in this patient's presentation that requires further investigation?
Your Answer: Vitamin D deficiency
Correct Answer: Thoracic back pain
Explanation:When evaluating a patient with back pain, it is crucial to be aware of red flag symptoms such as thoracic back pain, unexplained weight loss, local spinal tenderness, focal neurology, and age over 50 or under 18. Thoracic back pain is particularly concerning for malignancy in patients over 50 years old. Additionally, if symptoms have a gradual onset and do not improve with pain relief, further investigation is necessary. Gender and smoking history are not considered red flag risk factors for back pain.
Lower back pain is a common issue that is often caused by muscular strain. However, it is important to be aware of potential underlying causes that may require specific treatment. Certain red flags should be considered, such as age under 20 or over 50, a history of cancer, night pain, trauma, or systemic illness. There are also specific causes of lower back pain that should be kept in mind. Facet joint pain may be acute or chronic, worse in the morning and on standing, and typically worsens with back extension. Spinal stenosis may cause leg pain, numbness, and weakness that is worse on walking and relieved by sitting or leaning forward. Ankylosing spondylitis is more common in young men and causes stiffness that is worse in the morning and improves with activity. Peripheral arterial disease may cause pain on walking and weak foot pulses. It is important to consider these potential causes and seek appropriate diagnosis and treatment.
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This question is part of the following fields:
- Musculoskeletal
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Question 11
Correct
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A 42 year old undergoes a thyroidectomy and is informed about the potential impact on her parathyroid glands. What is a possible sign of parathyroid damage after the surgery?
Your Answer: Tingling around the hands, feet or mouth, and unusual muscle movements
Explanation:Symptoms and Complications of Thyroidectomy
Thyroidectomy is a common surgical procedure that involves the removal of the thyroid gland. However, it can lead to various complications, including hypoparathyroidism and hyperparathyroidism. Here are some symptoms to watch out for:
Acute hypocalcaemia, characterized by tingling around the hands, feet, or mouth, and unusual muscle movements, is a common complication of hypoparathyroidism post-thyroidectomy. Intravenous calcium may be necessary to correct the hypocalcaemia.
Headache, sweating, and tachycardia are classic symptoms of phaeochromocytoma, which can occur in patients at risk of hypoparathyroidism post-thyroidectomy.
Dry, thick skin, coarse hair, and brittle nails are signs of hypothyroidism, not hypoparathyroidism.
Feeling thirsty and passing a lot of urine are signs of hypercalcaemia, which may be caused by hyperparathyroidism. Hypoparathyroidism post-thyroidectomy is a common complication that can lead to hypercalcaemia.
Hyperactivity and mood swings are more indicative of hyperthyroidism, but patients at risk of hypoparathyroidism post-thyroidectomy should still be monitored for these symptoms.
In summary, patients who undergo thyroidectomy should be aware of the potential complications and symptoms that may arise. Regular monitoring and prompt medical attention can help manage these issues effectively.
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This question is part of the following fields:
- Endocrinology/Metabolic Disease
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Question 12
Correct
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A 70-year-old man presents to his GP with a nodular change on his back. He complains that it has become itchy and bleeding over the past two months. On examination, it appears black and blue in colour with a slightly irregular border.
Which of the following is the most likely cause?
Your Answer: Malignant melanoma
Explanation:Common Skin Lesions and Malignancies: Types and Characteristics
Skin lesions and malignancies are common conditions that affect people of all ages. Among the most prevalent types are malignant melanoma, actinic keratosis, guttate psoriasis, lentigo maligna, and seborrhoeic keratosis. Each of these conditions has distinct characteristics that can help in their diagnosis and management.
Malignant Melanoma: This is a type of skin cancer that arises from melanocytes in the skin. It can present as a black or brown lesion with asymmetrical shape, irregular border, multiple colors, and diameter greater than 6mm. Any change in size, shape, color, or symptoms such as bleeding or itching should be evaluated promptly.
Actinic Keratosis: This is a sun-induced lesion that can become malignant. It appears as a scaly or hyperkeratotic lesion with a brown or hyperpigmented base. It commonly occurs on the head, neck, forearms, and hands.
Guttate Psoriasis: This is a skin condition that causes multiple lesions. It can present as scaly, hyperpigmented, or scaly lesions that are usually brown with a scaly base.
Lentigo Maligna: This is an early form of melanoma that is confined to the epidermis. It presents as a slowly growing or changing patch of discolored skin that resembles freckles or brown marks. It can grow to several centimeters over several years or decades.
Seborrhoeic Keratosis: This is a harmless, pigmented growth that commonly occurs with age. It appears as a raised, often pigmented lesion that rarely causes bleeding.
In summary, skin lesions and malignancies can have various presentations and characteristics. It is important to be aware of their features and seek medical attention if any changes or symptoms occur. Regular skin checks and sun protection can help prevent and detect these conditions early.
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This question is part of the following fields:
- Dermatology
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Question 13
Correct
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A 56-year-old man is being seen in the respiratory clinic after being discharged from the hospital two weeks ago following a COPD exacerbation. Despite having optimised medications, he has had three hospitalisations this year and five last year. He does not smoke or drink alcohol. The consultant has reviewed his recent investigations and imaging and is considering recommending additional medication to reduce exacerbations. What medication is most likely to be suggested for this patient?
Your Answer: Azithromycin
Explanation:Patients with COPD who have frequent exacerbations with sputum production, prolonged exacerbations with sputum production, or hospitalizations from exacerbations may be recommended prophylaxis with oral azithromycin if they are non-smokers and have optimized therapy. Before starting azithromycin, the patient should undergo CT thorax, ECG, liver function testing, and sputum cultures. Amoxicillin is not recommended for prophylaxis in COPD patients. Although doxycycline is one of the mainstay antibiotics used to treat acute exacerbations of COPD, it is not used in prophylactic management according to NICE guidelines. Ramipril is used in the management of pulmonary hypertension, which can occur secondary to COPD, but it is not indicated for a patient who experiences frequent exacerbations like the one in this vignette.
NICE guidelines recommend smoking cessation advice, annual influenza and one-off pneumococcal vaccinations, and pulmonary rehabilitation for COPD patients. Bronchodilator therapy is first-line treatment, with the addition of LABA and LAMA for patients without asthmatic features and LABA, ICS, and LAMA for those with asthmatic features. Theophylline is recommended after trials of bronchodilators or for patients who cannot use inhaled therapy. Azithromycin prophylaxis is recommended in select patients. Mucolytics should be considered for patients with a chronic productive cough. Loop diuretics and long-term oxygen therapy may be used for cor pulmonale. Smoking cessation and long-term oxygen therapy may improve survival in stable COPD patients. Lung volume reduction surgery may be considered in selected patients.
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This question is part of the following fields:
- Respiratory Medicine
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Question 14
Correct
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Which of the following is the least probable cause of snoring in adolescents?
Your Answer: Kallman's syndrome
Explanation:Snoring is not a symptom of Kallman’s syndrome, which is a condition that leads to delayed puberty due to hypogonadotrophic hypogonadism.
Snoring in Children: Possible Causes
Snoring in children can be caused by various factors. One of the common causes is obesity, which can lead to the narrowing of the airways and difficulty in breathing during sleep. Another possible cause is nasal problems such as polyps, deviated septum, and hypertrophic nasal turbinates, which can also obstruct the airways and cause snoring. Recurrent tonsillitis can also contribute to snoring, as the inflamed tonsils can block the air passages.
In some cases, snoring in children may be associated with certain medical conditions such as Down’s syndrome and hypothyroidism. These conditions can affect the structure and function of the respiratory system, leading to snoring and other breathing difficulties.
It is important to identify the underlying cause of snoring in children and seek appropriate treatment to prevent potential health complications. Parents should consult a healthcare professional if their child snores regularly or experiences other symptoms such as daytime sleepiness, difficulty concentrating, or behavioral problems.
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This question is part of the following fields:
- Paediatrics
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Question 15
Correct
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A 50-year-old woman with known ovarian cancer presented to the emergency department complaining of severe right leg pain since yesterday. She had a hysterectomy 1 month ago.
Which of the following is the most likely cause of her symptoms?
Your Answer: DVT (deep-vein thrombosis)
Explanation:After undergoing surgery, a woman presents with leg pain. Several potential causes are considered, including deep-vein thrombosis (DVT), acute limb ischaemia, air embolus, lumbar disc herniation, and paradoxical embolus. Based on the patient’s risk factors and symptoms, DVT is deemed the most likely diagnosis. Other causes are ruled out due to lack of relevant history or low probability. Understanding the possible causes of leg pain after urological surgery can help healthcare providers make an accurate diagnosis and provide timely treatment.
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This question is part of the following fields:
- Haematology/Oncology
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Question 16
Correct
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As a junior doctor on the neonatal ward, you are called to a forceps delivery. During the delivery, the midwives notice shoulder dystocia in a newborn. What is the initial management approach for shoulder dystocia in a neonate?
Your Answer: McRoberts manoeuvre (hyperflexion of the legs)
Explanation:The McRoberts maneuver involves hyperflexing the legs.
Shoulder dystocia is a complication that can occur during vaginal delivery when the body of the fetus cannot be delivered after the head has already been delivered. This is usually due to the anterior shoulder of the fetus becoming stuck on the mother’s pubic bone. Shoulder dystocia can cause harm to both the mother and the fetus. Risk factors for shoulder dystocia include fetal macrosomia, high maternal body mass index, diabetes mellitus, and prolonged labor.
If shoulder dystocia is identified, it is important to call for senior help immediately. The McRoberts’ maneuver is often performed, which involves flexing and abducting the mother’s hips to increase the angle of the pelvis and facilitate delivery. An episiotomy may be performed to provide better access for internal maneuvers, but it will not relieve the bony obstruction. Symphysiotomy and the Zavanelli maneuver are not recommended as they can cause significant maternal morbidity. Oxytocin administration is not indicated for shoulder dystocia.
Complications of shoulder dystocia can include postpartum hemorrhage and perineal tears for the mother, and brachial plexus injury and neonatal death for the fetus. It is important to manage shoulder dystocia promptly and appropriately to minimize the risk of these complications.
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This question is part of the following fields:
- Paediatrics
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Question 17
Incorrect
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A 62-year-old woman comes to her General Practitioner for her annual medication review. Her regular medications are levothyroxine 75 µg, lisinopril 10 mg and she has recently completed a course of ibuprofen tablets. She has been feeling tired and sluggish recently with frequent headaches. Examination reveals she has gained 2 kg since her last review, blood pressure is 142/78 mmHg, pulse is 88 bpm and she has a dry skin. Full blood count, urea and electrolytes and liver function tests are normal. Her thyroid-function test (TFT) results are: Thyroid-stimulating hormone (TSH) 6.0 mU/l (0.25–4.0 mU/l) Free T4 10.0 pmol/l (12.0–22.0 pmol/l) What is the most appropriate next step in her management?
Your Answer: Increased dose of levothyroxine
Correct Answer: Reduce levothyroxine dose
Explanation:The patient is experiencing hyperthyroidism due to an excess of levothyroxine replacement. It is important to reduce the dose of levothyroxine and monitor the patient with regular blood tests until they become euthyroid again. Starting carbimazole or increasing the dose of levothyroxine is not recommended as it could lead to further complications. Propylthiouracil is only used in cases of thyrotoxic storm and radio-iodine therapy is not necessary in this case as the hyperthyroidism is due to over-replacement of levothyroxine.
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This question is part of the following fields:
- Endocrinology/Metabolic Disease
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Question 18
Incorrect
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A 6-year-old girl's normal heart rate is which of the following?
Your Answer: 90 – 140 bpm
Correct Answer: 80 – 120 bpm
Explanation:Normal Heart Rate Range for Children
The normal heart rate for a 6-year-old child would be between 80-120 beats per minute (bpm). It’s important to note that the normal heart rate range varies depending on the child’s age. For instance, a heart rate of 110-160 bpm would be normal for a child aged less than 1 year, while a heart rate of 60-100 bpm would be normal for a child aged over 12 years. For children aged between 1 and 2 years, a heart rate of 100-150 bpm is considered normal, while for those aged between 2 and 5 years, a heart rate of 95-140 bpm is normal. For children aged between 5 and 12 years, a heart rate of 80-120 bpm is normal. Knowing the normal heart rate range for children is essential in monitoring their health and detecting any abnormalities.
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This question is part of the following fields:
- Paediatrics
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Question 19
Correct
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A 67-year-old woman is brought to the Emergency Department after being found near-unconscious by her husband. Her husband indicates that she has a long-term joint disorder for which she has been taking oral steroids for many years. She has recently been suffering from depression and has had poor compliance with medications.
On examination, she is responsive to pain. Her pulse is 130 beats per minute, and her blood pressure is 90/60 mmHg. She is afebrile.
Basic blood investigations reveal the following:
Investigation Patient Normal value
Haemoglobin (Hb) 121 g/l 135–175 g/l
White cell count (WCC) 6.1 × 109/l 4.0–11.0 × 109/l
Platelets (PLT) 233 × 109/l 150–400 × 109/l
Sodium (Na+) 129 mmol/l 135–145 mmol/l
Potassium (K+) 6.0 mmol/l 3.5–5.0 mmol/l
Creatinine (Cr) 93 μmol/l 50–120 µmol/l
Glucose 2.7 mmol/l < 11.1 mmol/l (random)
What is the most likely diagnosis?Your Answer: Addisonian crisis
Explanation:Differential Diagnosis: Addisonian Crisis and Other Conditions
Addisonian Crisis: A Brief Overview
Addison’s disease, or adrenal insufficiency, is a condition that results from the destruction of the adrenal cortex, leading to a deficiency in glucocorticoid and mineralocorticoid hormones. The majority of cases in the UK are due to autoimmune disease, while tuberculosis is the most common cause worldwide. Patients with Addison’s disease may present with vague symptoms such as anorexia, weight loss, and gastrointestinal upset, as well as hyperpigmentation of the skin. Basic investigations may reveal hyponatremia, hyperkalemia, and hypoglycemia. A short ACTH stimulation test is used to confirm the diagnosis. Emergency treatment involves IV or IM hydrocortisone and fluids, while long-term treatment is based on oral cortisol and mineralocorticoid replacement.
Differential Diagnosis
Insulin Overdose: While hypoglycemia is a common feature of insulin overdose, the clinical information provided suggests that the low glucose level is due to the loss of the anti-insulin effect of cortisol, which is a hallmark of Addison’s disease.
Meningococcal Septicaemia: Although hypotension and tachycardia may be present in meningococcal septicaemia, the other features described do not support this diagnosis.
Paracetamol Overdose: Paracetamol overdose can cause liver toxicity, but the clinical features described are not typical of this condition and are more suggestive of an Addisonian crisis.
Salicylate Overdose: Salicylate overdose can cause a range of symptoms, including nausea, vomiting, and abdominal pain, but the clinical features described do not support this diagnosis.
Conclusion
Based on the information provided, an Addisonian crisis is the most likely diagnosis. However, further investigations may be necessary to rule out other conditions. Prompt recognition and treatment of an Addisonian crisis are essential to prevent life-threatening complications.
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This question is part of the following fields:
- Endocrinology/Metabolic Disease
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Question 20
Correct
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Which of the following medications does not lead to galactorrhea?
Your Answer: Bromocriptine
Explanation:Bromocriptine is used to treat galactorrhoea, not to induce it.
Understanding Prolactin and Galactorrhoea
Prolactin is a hormone produced by the anterior pituitary gland, and its release is regulated by various physiological factors. Dopamine is the primary inhibitor of prolactin release, and dopamine agonists like bromocriptine can be used to manage galactorrhoea. Galactorrhoea is a condition characterized by the production of breast milk in individuals who are not breastfeeding. It is important to distinguish the causes of galactorrhoea from those of gynaecomastia, which is the enlargement of male breast tissue.
Excess prolactin can lead to different symptoms in men and women. Men may experience impotence, loss of libido, and galactorrhoea, while women may have amenorrhoea and galactorrhoea. Several factors can cause raised prolactin levels, including prolactinoma, pregnancy, oestrogens, stress, exercise, sleep, acromegaly, polycystic ovarian syndrome, and primary hypothyroidism. Additionally, certain medications like metoclopramide, domperidone, phenothiazines, haloperidol, SSRIs, and opioids can also increase prolactin levels.
In summary, understanding prolactin and its effects on the body is crucial in diagnosing and managing conditions like galactorrhoea. Identifying the underlying causes of raised prolactin levels is essential in providing appropriate treatment and improving patient outcomes.
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This question is part of the following fields:
- Reproductive Medicine
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Question 21
Correct
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A 20 year-old female patient visits her GP to request a refill of her COCP prescription. She reports experiencing intense headaches on the left side of her head, accompanied by visual disturbances prior to the onset of the headache. Upon examination, no abnormalities are detected. What is the best course of action for managing her symptoms?
Your Answer: Stop the COCP and start treatment on a progesterone only contraceptive pill.
Explanation:The woman is experiencing migraines with aura, a condition that can be exacerbated by the use of COCP. If a woman has migraine with aura, it is recommended that she discontinue the use of the pill immediately. This is because the oestrogen component of COCP can increase the risk of ischaemic stroke. The only alternative contraceptive medication that can be prescribed is a progesterone-only contraceptive pill, as other options contain oestrogen.
Counselling for Women Considering the Combined Oral Contraceptive Pill
Women who are considering taking the combined oral contraceptive pill (COC) should receive counselling on the potential harms and benefits of the pill. The COC is highly effective if taken correctly, with a success rate of over 99%. However, there is a small risk of blood clots, heart attacks, and strokes, as well as an increased risk of breast and cervical cancer.
In addition to discussing the potential risks and benefits, women should also receive advice on how to take the pill. If the COC is started within the first 5 days of the menstrual cycle, there is no need for additional contraception. However, if it is started at any other point in the cycle, alternative contraception should be used for the first 7 days. Women should take the pill at the same time every day and should be aware that intercourse during the pill-free period is only safe if the next pack is started on time.
There have been recent changes to the guidelines for taking the COC. While it was previously recommended to take the pill for 21 days and then stop for 7 days to mimic menstruation, it is now recommended to discuss tailored regimes with women. This is because there is no medical benefit to having a withdrawal bleed, and options include never having a pill-free interval or taking three 21-day packs back-to-back before having a 4 or 7 day break.
Women should also be informed of situations where the efficacy of the pill may be reduced, such as vomiting within 2 hours of taking the pill, medication that induces diarrhoea or vomiting, or taking liver enzyme-inducing drugs. It is also important to discuss sexually transmitted infections and precautions that should be taken with enzyme-inducing antibiotics such as rifampicin.
Overall, counselling for women considering the COC should cover a range of topics to ensure that they are fully informed and able to make an informed decision about their contraceptive options.
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This question is part of the following fields:
- Neurology
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Question 22
Correct
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A 38-year-old teacher presents with ongoing fatigue. During a routine blood test, abnormal liver function tests are detected, prompting a hepatitis screen. The results are as follows:
Negative for Anti-HAV IgG
Negative for HBsAg
Positive for Anti-HBs
Negative for Anti-HBc
Positive for Anti-HCV
What is the most likely interpretation of these results?Your Answer: Hepatitis C infection with previous hepatitis B vaccination
Explanation:To determine if a patient still has the hepatitis C virus, a HCV PCR test is necessary as only a small percentage of patients naturally clear the infection. Unfortunately, there is currently no vaccine available for hepatitis C.
When interpreting hepatitis B serology, the presence of surface antigen (HBsAg) typically indicates acute disease and triggers the production of anti-HBs. If HBsAg is present for more than six months, it suggests chronic disease and is infectious. Anti-HBs indicates immunity from either exposure or vaccination, while anti-HBc suggests previous or current infection. The appearance of IgM anti-HBc during acute or recent hepatitis B infection lasts for about six months. HbeAg is a marker of infectivity as it results from the breakdown of core antigen from infected liver cells.
Understanding Hepatitis C: Transmission, Complications, and Management
Hepatitis C is a viral infection that is expected to become a significant public health concern in the UK in the coming years. It is estimated that around 200,000 people in the country are chronically infected with the virus, with intravenous drug users and those who received blood transfusions prior to 1991 being at higher risk. The virus is an RNA flavivirus with an incubation period of 6-9 weeks.
Transmission of the virus can occur through needle stick injuries, vertical transmission from mother to child (especially if coexistent with HIV), and sexual intercourse (although the risk is low). There is currently no vaccine for hepatitis C. Symptoms of acute infection include a transient rise in serum aminotransferases, jaundice, fatigue, and arthralgia.
Around 15-45% of patients will clear the virus after an acute infection, while the majority (55-85%) will develop chronic hepatitis C. This can lead to complications such as rheumatological problems, cirrhosis, hepatocellular cancer, and cryoglobulinemia. Treatment for chronic infection depends on the viral genotype and aims for sustained virological response (SVR), defined as undetectable serum HCV RNA six months after the end of therapy. Interferon-based treatments are no longer recommended, with protease inhibitors such as daclatasvir and sofosbuvir or sofosbuvir and simeprevir being used instead. However, these treatments can have side effects such as haemolytic anaemia, cough, flu-like symptoms, depression, and fatigue.
In conclusion, understanding the transmission, complications, and management of hepatitis C is crucial in addressing this growing public health concern.
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This question is part of the following fields:
- Infectious Diseases
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Question 23
Correct
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A 92-year-old male was admitted to the stroke ward with right-sided facial droop and hemiplegia. CT head revealed a significant infarct in the left middle cerebral artery. The patient has finished a 2-week course of high-dose aspirin (300mg) for the management of an acute ischemic stroke. What is the best choice for secondary prevention?
Your Answer: Switch to clopidogrel
Explanation:The preferred antiplatelet for secondary prevention following a stroke is clopidogrel 75mg, as it reduces the risk of major adverse cardiovascular events. It is recommended for patients who have had a transient ischaemic attack or confirmed stroke after two weeks of high-dose aspirin. Low-dose aspirin (75mg) and modified-release dipyridamole can be used as an alternative if clopidogrel is contraindicated. High-dose aspirin (300 mg) is only indicated in the first 2 weeks after an acute ischaemic stroke. Anticoagulants such as DOACs and warfarin are used to prevent clot formation and embolisation in patients with atrial fibrillation (AF) to reduce the risk of stroke. However, since there is no evidence of AF in this patient, these options are not applicable.
The Royal College of Physicians (RCP) and NICE have published guidelines on the diagnosis and management of patients following a stroke. The management of acute stroke includes maintaining normal levels of blood glucose, hydration, oxygen saturation, and temperature. Blood pressure should not be lowered in the acute phase unless there are complications. Aspirin should be given as soon as possible if a haemorrhagic stroke has been excluded. Anticoagulants should not be started until brain imaging has excluded haemorrhage. Thrombolysis with alteplase should only be given if administered within 4.5 hours of onset of stroke symptoms and haemorrhage has been definitively excluded. Mechanical thrombectomy is a new treatment option for patients with an acute ischaemic stroke. NICE recommends thrombectomy for people who have acute ischaemic stroke and confirmed occlusion of the proximal anterior circulation demonstrated by computed tomographic angiography or magnetic resonance angiography. Secondary prevention includes the use of clopidogrel and dipyridamole. Carotid artery endarterectomy should only be considered if carotid stenosis is greater than 70% according to ECST criteria or greater than 50% according to NASCET criteria.
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This question is part of the following fields:
- Neurology
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Question 24
Incorrect
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A 30-year-old woman complains of bloating and abdominal pain that has been ongoing for the past 6 months. Which of the following symptoms is not typically associated with a diagnosis of irritable bowel syndrome?
Your Answer: Feeling of incomplete stool evacuation
Correct Answer: Weight loss
Explanation:Exclusion of underlying malignancy or inflammatory bowel disease is necessary as weight loss is not a characteristic of IBS.
Diagnosis and Management of Irritable Bowel Syndrome
Irritable bowel syndrome (IBS) is a common gastrointestinal disorder that affects many people. In 2008, the National Institute for Health and Care Excellence (NICE) published clinical guidelines on the diagnosis and management of IBS. According to these guidelines, a positive diagnosis of IBS should be considered if the patient has had abdominal pain, bloating, or a change in bowel habit for at least six months. Additionally, a positive diagnosis should be made if the patient has abdominal pain relieved by defecation or associated with altered bowel frequency stool form, in addition to two of the following four symptoms: altered stool passage, abdominal bloating, symptoms made worse by eating, and passage of mucus. Other features such as lethargy, nausea, backache, and bladder symptoms may also support the diagnosis.
It is important to note that red flag features should be enquired about, including rectal bleeding, unexplained/unintentional weight loss, family history of bowel or ovarian cancer, and onset after 60 years of age. Primary care investigations such as a full blood count, ESR/CRP, and coeliac disease screen (tissue transglutaminase antibodies) are suggested. By following these guidelines, healthcare professionals can effectively diagnose and manage IBS in their patients.
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This question is part of the following fields:
- Gastroenterology/Nutrition
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Question 25
Correct
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A 30-year-old man visits his doctor for a follow-up on his depression. He was given fluoxetine 4 months ago for a case of moderate depression. He reports that his mood has been great lately, that he no longer feels despair about the future, and that he has resumed his hobbies of playing basketball and writing.
The patient indicates that he would like to discontinue taking fluoxetine since he believes his depression has been resolved.
What advice should be given?Your Answer: Continue fluoxetine for at least 6 months
Explanation:To decrease the risk of relapse, it is recommended to continue antidepressant treatment for at least 6 months after remission of symptoms. Therefore, the correct response is to continue fluoxetine for at least 6 months at the same dose. It should be noted that in elderly patients, treatment should be continued for 12 months, and in those with a history of recurrent depression, treatment should be continued for 2 years. Stopping fluoxetine or tapering the dose over 2 weeks is not appropriate, as treatment should be continued for at least 6 months before considering stopping or tapering. When fluoxetine is stopped, it is recommended to taper the dose over 6-12 weeks to minimize the risk of withdrawal symptoms.
Selective serotonin reuptake inhibitors (SSRIs) are commonly used as the first-line treatment for depression. Citalopram and fluoxetine are the preferred SSRIs, while sertraline is recommended for patients who have had a myocardial infarction. However, caution should be exercised when prescribing SSRIs to children and adolescents. Gastrointestinal symptoms are the most common side-effect, and patients taking SSRIs are at an increased risk of gastrointestinal bleeding. Patients should also be aware of the possibility of increased anxiety and agitation after starting a SSRI. Fluoxetine and paroxetine have a higher propensity for drug interactions.
The Medicines and Healthcare products Regulatory Agency (MHRA) has issued a warning regarding the use of citalopram due to its association with dose-dependent QT interval prolongation. As a result, citalopram and escitalopram should not be used in patients with congenital long QT syndrome, known pre-existing QT interval prolongation, or in combination with other medicines that prolong the QT interval. The maximum daily dose of citalopram is now 40 mg for adults, 20 mg for patients older than 65 years, and 20 mg for those with hepatic impairment.
When initiating antidepressant therapy, patients should be reviewed by a doctor after 2 weeks. Patients under the age of 25 years or at an increased risk of suicide should be reviewed after 1 week. If a patient responds well to antidepressant therapy, they should continue treatment for at least 6 months after remission to reduce the risk of relapse. When stopping a SSRI, the dose should be gradually reduced over a 4 week period, except for fluoxetine. Paroxetine has a higher incidence of discontinuation symptoms, including mood changes, restlessness, difficulty sleeping, unsteadiness, sweating, gastrointestinal symptoms, and paraesthesia.
When considering the use of SSRIs during pregnancy, the benefits and risks should be weighed. Use during the first trimester may increase the risk of congenital heart defects, while use during the third trimester can result in persistent pulmonary hypertension of the newborn. Paroxetine has an increased risk of congenital malformations, particularly in the first trimester.
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This question is part of the following fields:
- Psychiatry
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Question 26
Incorrect
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A 28-year-old man with a history of ulcerative colitis presents to the hospital with a flare-up of his condition. He has been experiencing up to five bloody stools per day for the past three days, and has developed abdominal pain and a low-grade fever in the last 24 hours. His blood work shows the following results:
- Hemoglobin: 13.9 g/dL
- Platelets: 422 * 10^9/L
- White blood cells: 10.1 * 10^9/L
- Erythrocyte sedimentation rate: 88 mm/hr
- C-reactive protein: 198 mg/L
What is the most crucial investigation to conduct next?Your Answer: Colonoscopy
Correct Answer: Abdominal x-ray
Explanation:It is possible that this individual has developed toxic megacolon, which is characterized by a transverse colon diameter exceeding 6 cm and accompanying symptoms of systemic distress. Treatment for toxic megacolon typically involves intensive medical intervention for a period of 24-72 hours. If there is no improvement in the patient’s condition during this time, a colectomy may be necessary.
Understanding Ulcerative Colitis Flares
Ulcerative colitis is a chronic inflammatory bowel disease that can cause flares or periods of worsening symptoms. While most flares occur without a clear trigger, there are several factors that are often associated with them. These include stress, certain medications such as NSAIDs and antibiotics, and even quitting smoking.
Flares of ulcerative colitis can be classified as mild, moderate, or severe based on the frequency and severity of symptoms. Mild flares may involve fewer than four stools a day with or without blood, while moderate flares may include four to six stools a day with minimal systemic disturbance. Severe flares, on the other hand, may involve more than six stools a day containing blood, as well as evidence of systemic disturbance such as fever, tachycardia, abdominal tenderness, distension, reduced bowel sounds, anemia, and hypoalbuminemia.
Patients with evidence of severe disease should be admitted to the hospital for close monitoring and treatment. Understanding the triggers and symptoms of ulcerative colitis flares can help patients manage their condition and seek appropriate medical care when necessary.
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This question is part of the following fields:
- Gastroenterology/Nutrition
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Question 27
Correct
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A 70-year-old man has been taking warfarin for 2 years due to paroxysmal atrial fibrillation. He recently underwent DC cardioversion and is now in sinus rhythm after consulting with his cardiologist. His CHAD-VASC score is 4. Assuming he remains in sinus rhythm, what is the best course of action for his anticoagulation?
Your Answer: Continue anticoagulation lifelong
Explanation:Anticoagulation should be continued long-term, even if sinus rhythm is maintained, following elective DC cardioversion for AF in high-risk patients. The correct answer is to continue anticoagulation lifelong, with regular evaluation of bleeding risk. The options of continuing anticoagulation for 4 weeks or 6 months then stopping are incorrect for this patient who has a high CHAD-VASC score. One week of low molecular weight heparin is not the appropriate answer in this case, although it may be used for thromboprophylaxis in some post-surgical patients.
Atrial Fibrillation and Cardioversion: Elective Procedure for Rhythm Control
Cardioversion is a medical procedure used in atrial fibrillation (AF) to restore the heart’s normal rhythm. There are two scenarios where cardioversion may be used: as an emergency if the patient is haemodynamically unstable, or as an elective procedure where a rhythm control strategy is preferred. In the elective scenario, cardioversion can be performed either electrically or pharmacologically. Electrical cardioversion is synchronised to the R wave to prevent delivery of a shock during the vulnerable period of cardiac repolarisation when ventricular fibrillation can be induced.
According to the 2014 NICE guidelines, rate or rhythm control should be offered if the onset of the arrhythmia is less than 48 hours, and rate control should be started if it is more than 48 hours or is uncertain. If the AF is definitely of less than 48 hours onset, patients should be heparinised and may be cardioverted using either electrical or pharmacological means. However, if the patient has been in AF for more than 48 hours, anticoagulation should be given for at least 3 weeks prior to cardioversion. An alternative strategy is to perform a transoesophageal echo (TOE) to exclude a left atrial appendage (LAA) thrombus. If excluded, patients may be heparinised and cardioverted immediately.
NICE recommends electrical cardioversion in this scenario, rather than pharmacological. If there is a high risk of cardioversion failure, it is recommended to have at least 4 weeks of amiodarone or sotalol prior to electrical cardioversion. Following electrical cardioversion, patients should be anticoagulated for at least 4 weeks. After this time, decisions about anticoagulation should be taken on an individual basis depending on the risk of recurrence.
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This question is part of the following fields:
- Cardiovascular
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Question 28
Incorrect
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A 30-year-old teacher who recently returned after completing a 3-month assignment in Thailand presented to the Emergency Department with fever, headache, confusion and vomiting in the last two days. She was suspected of having meningitis and underwent a lumbar puncture (LP). The LP findings are as follows:
Normal opening pressure, clear cerebrospinal fluid (CSF).
Investigation Result Normal value
CSF white blood cell count (WBC) 400 cells/µl, 70% lymphocytes < 5 cells/µl
CSF protein 0.5 g/l 0.15–0.4 g/l
CSF glucose 3.8 mmol/l 2.6–4.5 mmol/l
CSF–plasma-glucose ratio 0.72 ≥ 0.66
What is the most likely diagnosis?
Select the SINGLE best answer from the list below.
Select ONE option onlyYour Answer: Cryptococcal meningitis
Correct Answer: Viral meningitis
Explanation:The cerebrospinal fluid (CSF) findings can help diagnose different types of meningitis. Viral meningitis typically shows clear CSF with a slightly elevated white blood cell count (5-1000 cells/µl, mostly lymphocytes), mildly elevated protein levels, and a normal or slightly low CSF-to-plasma-glucose ratio. Bacterial meningitis, on the other hand, often presents with turbid CSF, a high white blood cell count (>100 cells/µl, mostly neutrophils), elevated protein levels, and a very low CSF-to-plasma-glucose ratio. Fungal meningitis, such as cryptococcal meningitis, usually shows clear or cloudy CSF, a slightly elevated white blood cell count (5-100 cells/µl, mostly lymphocytes), elevated protein levels, and a low CSF-to-plasma-glucose ratio. Tuberculous meningitis typically presents with clear or cloudy CSF, a slightly elevated white blood cell count (5-100 cells/µl, mostly lymphocytes), significantly elevated protein levels, and a very low CSF-to-plasma-glucose ratio. A sub-arachnoid hemorrhage, which is not meningitis, typically presents with a sudden, severe headache and signs of increased intracranial pressure. The CSF in this case often shows xanthochromia.
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This question is part of the following fields:
- Infectious Diseases
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Question 29
Correct
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A 35-year-old woman is brought to the Emergency Department after being found near-unconscious by her husband. He claims she has been increasingly depressed and tired over the last few weeks. Past medical history includes coeliac disease, for which she follows a strict gluten-free diet, and vitiligo. She is on no medical treatment. On examination, she is responsive to pain. Her pulse is 130 bpm and blood pressure is 90/60 mmHg. She is afebrile. Pigmented palmar creases are also noted. Basic blood investigations reveal:
Investigation Result Normal value
Hb 121 g/l 135–180 g/l
WCC 6.1 × 109/l 4–11 × 109/l
Platelets 233 × 109/l 150–400 × 109/l
Na+ 129 mmol/l 135–145 mmol/l
K+ 6.0 mmol/l 3.5–5.0 mmol/l
Creatinine 93 μmol/l 50–120 µmol/l
Glucose 2.7 mmol/l <11.1 mmol/l (random)
What is the most likely diagnosis?Your Answer: Addisonian crisis
Explanation:Medical Conditions and Differential Diagnosis
Addisonian Crisis: A condition caused by adrenal insufficiency, often due to autoimmune disease, TB, metastases, or adrenal haemorrhage. Symptoms include vague complaints such as depression, anorexia, and GI upset, as well as tanned skin and pigmented palmar creases. Diagnosis is confirmed through a short ACTH stimulation test. Emergency treatment involves IV hydrocortisone and fluids, while long-term treatment involves oral cortisol and mineralocorticoid.
Other Differential Diagnoses: Meningococcal septicaemia, insulin overdose, paracetamol overdose, and salicylate overdose. However, the clinical features described in the scenario are not suggestive of these conditions.
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This question is part of the following fields:
- Endocrinology/Metabolic Disease
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Question 30
Correct
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A 52-year-old woman with a body mass index (BMI) of 32 was diagnosed with type 2 diabetes mellitus during a routine check-up six months ago. Despite being advised about a low-energy, weight-reducing diet and exercise, she has not followed through with these recommendations and her postprandial blood glucose concentration is 13.8 mmol/l (reference range <11.1 mmol/l). What would be the drug of choice in this case?
Your Answer: Metformin
Explanation:Medications for Type 2 Diabetes
Metformin: The Initial Drug Treatment of Choice
For adults with type 2 diabetes, standard-release metformin is the recommended initial drug treatment. The dose should be gradually increased to avoid gastrointestinal side effects. If significant GI side effects occur, modified-release metformin can be tried. Metformin reduces hepatic gluconeogenesis and increases insulin sensitivity, leading to an increase in peripheral glucose uptake. However, caution should be exercised when using metformin in patients with renal failure, and it should be stopped if the estimated glomerular filtration rate is less than 30 ml/min per 1.73m2.Tolbutamide and Chlorpropamide: First-Generation Sulfonylureas
Tolbutamide and chlorpropamide are first-generation sulfonylureas that are no longer routinely used in the treatment of type 2 diabetes due to a higher incidence of side effects compared to newer, second-generation sulfonylureas. Chlorpropamide is not available in the UK.Insulin: Considered for Dual Therapy
Insulin-based treatment should be considered in type 2 diabetes patients who have not achieved optimal glycated haemoglobin control with dual therapy using metformin and another oral drug. Metformin should continue to be offered to patients without contraindications or intolerance.Pioglitazone: An Alternative Second-Line Agent
Pioglitazone can be considered as an alternative second-line agent for patients with type 2 diabetes who cannot take metformin or have not tolerated it well. It can also be used in dual therapy for first intensification of treatment. -
This question is part of the following fields:
- Endocrinology/Metabolic Disease
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Question 31
Correct
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A 19-year-old young woman is enjoying a meal at a Chinese restaurant to celebrate her birthday. Despite having a nut allergy, the restaurant has taken precautions to ensure her safety. However, while trying a friend's chicken dish, she unknowingly ingested peanuts and experiences a severe allergic reaction, including difficulty breathing and facial swelling. Thankfully, her friend has an EpiPen® and administers it before calling for an ambulance. Although her symptoms improve, she remains unwell and struggling to breathe. Her friend remembers that a second EpiPen® can be used if necessary. When is it appropriate to administer the second dose of adrenaline?
Your Answer: 5 minutes
Explanation:Adrenaline can be administered every 5 minutes in the management of anaphylaxis. It is recommended that individuals with a history of anaphylaxis carry two auto-injectors with them in case a second dose is needed.
Anaphylaxis is a severe and potentially life-threatening allergic reaction that affects the entire body. It can be caused by various triggers, including food, drugs, and insect venom. The symptoms of anaphylaxis typically occur suddenly and progress rapidly, affecting the airway, breathing, and circulation. Common signs include swelling of the throat and tongue, hoarse voice, respiratory wheeze, dyspnea, hypotension, and tachycardia. In addition, around 80-90% of patients experience skin and mucosal changes, such as generalized pruritus, erythematous rash, or urticaria.
The management of anaphylaxis requires prompt and decisive action, as it is a medical emergency. The Resuscitation Council guidelines recommend intramuscular adrenaline as the most important drug for treating anaphylaxis. The recommended doses of adrenaline vary depending on the patient’s age, ranging from 100-150 micrograms for infants under 6 months to 500 micrograms for adults and children over 12 years. Adrenaline can be repeated every 5 minutes if necessary, and the best site for injection is the anterolateral aspect of the middle third of the thigh. In cases of refractory anaphylaxis, IV fluids and expert help should be sought.
Following stabilisation, patients may be given non-sedating oral antihistamines to manage persisting skin symptoms. It is important to refer all patients with a new diagnosis of anaphylaxis to a specialist allergy clinic and provide them with an adrenaline injector as an interim measure before the specialist assessment. Patients should also be prescribed two adrenaline auto-injectors and trained on how to use them. A risk-stratified approach to discharge should be taken, as biphasic reactions can occur in up to 20% of patients. The Resus Council UK recommends a fast-track discharge for patients who have had a good response to a single dose of adrenaline and complete resolution of symptoms, while those who require two doses of IM adrenaline or have a history of biphasic reaction should be observed for at least 12 hours following symptom resolution.
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This question is part of the following fields:
- Immunology/Allergy
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Question 32
Correct
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A previously healthy 26-year-old female complains of profuse diarrhoea and is worried after observing bright red blood in her stool. She has been feeling unwell for the past four days and denies consuming any unusual food, although she did attend a barbecue five days ago. What is the most probable organism responsible for her symptoms?
Your Answer: Campylobacter jejuni
Explanation:The patient’s symptoms of prodrome and bloody diarrhoea are indicative of a Campylobacter infection, which is the most common bacterial cause of infectious intestinal disease in the UK. The incubation period for this infection is typically 1-6 days, which aligns with the patient’s presentation. Bacillus cereus, which is associated with food poisoning from reheated rice, typically has a shorter incubation period and would not usually cause bloody diarrhoea. Clostridium difficile infection is more commonly found in hospital settings and is linked to antibiotic use, but there are no risk factors mentioned for this patient. Salmonella enteritidis, which has a shorter incubation period and is associated with severe vomiting and high fever, is less likely to be the cause of the patient’s symptoms.
Campylobacter: The Most Common Bacterial Cause of Intestinal Disease in the UK
Campylobacter is a Gram-negative bacillus that is responsible for causing infectious intestinal disease in the UK. The bacteria is primarily spread through the faecal-oral route and has an incubation period of 1-6 days. Symptoms of Campylobacter infection include a prodrome of headache and malaise, diarrhoea (often bloody), and abdominal pain that may mimic appendicitis.
In most cases, Campylobacter infection is self-limiting and does not require treatment. However, the British National Formulary (BNF) recommends treatment with antibiotics if the patient is immunocompromised or if symptoms are severe (high fever, bloody diarrhoea, or more than eight stools per day) and have lasted for more than one week. The first-line antibiotic for Campylobacter infection is clarithromycin, although ciprofloxacin is an alternative. It is important to note that strains with decreased sensitivity to ciprofloxacin are frequently isolated.
Complications of Campylobacter infection may include Guillain-Barre syndrome, reactive arthritis, septicaemia, endocarditis, and arthritis. It is important to seek medical attention if symptoms are severe or persist for an extended period of time.
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This question is part of the following fields:
- Gastroenterology/Nutrition
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Question 33
Incorrect
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A 38-year-old woman complains of a sudden 'droop' on the right side of her face upon waking up this morning. She denies any weakness in her limbs, difficulty swallowing, or changes in her vision. Upon examination, you observe paralysis on the upper and lower right side of her face. Which of the following symptoms would be most indicative of Bell's palsy?
Your Answer: Sensory loss over the distribution of the facial nerve
Correct Answer: Hyperacusis
Explanation:Ramsey Hunt syndrome can be diagnosed based on the presence of a vesicular rash near the ear, which is often accompanied by hyperacusis in approximately one-third of patients.
Understanding Bell’s Palsy
Bell’s palsy is a sudden, one-sided facial nerve paralysis of unknown cause. It is more common in individuals aged 20-40 years and pregnant women. The condition is characterized by lower motor neuron facial nerve palsy, which affects the forehead. Unlike upper motor neuron lesions, the upper face is spared. Patients may also experience post-auricular pain, altered taste, dry eyes, and hyperacusis.
The management of Bell’s palsy has been a subject of debate. However, it is now widely accepted that all patients should receive oral prednisolone within 72 hours of onset. The addition of antiviral medications is still a matter of discussion, but it may be beneficial for severe facial palsy. Eye care is also crucial to prevent exposure keratopathy, and patients should be prescribed artificial tears and eye lubricants. If they are unable to close their eyes at bedtime, they should tape them closed using microporous tape.
If the paralysis shows no sign of improvement after three weeks, an urgent referral to ENT is necessary. Patients with long-standing weakness may require a referral to plastic surgery. The prognosis for Bell’s palsy is generally good, with most patients making a full recovery within 3-4 months. However, untreated patients may experience permanent moderate to severe weakness in around 15% of cases.
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This question is part of the following fields:
- Neurology
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Question 34
Correct
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A 45-year-old woman presents to the Ophthalmology department with a 3-day history of an increasingly painful and swollen left eye. She complains of blurring of vision and pain, especially with eye movements.
On examination, visual acuity is 6/24 in the left and 6/6 in the right. The periorbital area of the left eye is very swollen and erythematous. The eye itself is red and proptosed. The conjunctiva is chemosed. Eye movements in the left eye are quite restricted in all directions. There is relative afferent pupillary defect on the left. Fundoscopy shows a swollen optic disc in the left eye. Vital observations are as follows:
Blood pressure 130/80 mmHg
Heart rate 80 bpm
Respiratory rate 20 per minute
Oxygen saturation 97% on air
Temperature 38.2 °C
Computed tomography (CT) scan shows some opacities in the ethmoid sinuses.
What is the definitive treatment for this eye problem?Your Answer: Drainage of the ethmoid sinuses
Explanation:Treatment Options for Ethmoidal Sinusitis and Orbital Cellulitis
Ethmoidal sinusitis is a common cause of orbital cellulitis, which requires prompt treatment to prevent complications. The most effective treatment for ethmoidal sinusitis is surgical drainage of the sinuses to remove the pus and debris. Antibiotics are also necessary to aid recovery, but they should be administered after the drainage procedure.
While there are several antibiotics that can be used to treat orbital cellulitis, such as cefuroxime, metronidazole, co-amoxiclav, and Tazocin®, they are not sufficient to address the underlying cause of the condition. Therefore, drainage of the ethmoid sinuses is the definitive treatment for ethmoidal sinusitis and orbital cellulitis.
In summary, the treatment options for ethmoidal sinusitis and orbital cellulitis include surgical drainage of the sinuses followed by antibiotics. Antibiotics alone are not enough to treat the condition, and the choice of antibiotic may vary depending on the patient’s age and other factors.
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This question is part of the following fields:
- Ophthalmology
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Question 35
Incorrect
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A 55-year-old man comes to the Genetic Counselling Clinic after being diagnosed with colon cancer through the national bowel cancer screening programme. He was adopted as a child and has no knowledge of his biological family's medical history.
What is the most suitable genetic disorder to test for in this individual?Your Answer: Familial adenomatous polyposis
Correct Answer: Lynch syndrome
Explanation:Lynch syndrome is a genetic condition that increases the risk of developing colorectal cancer by over 80%. It also raises the risk of other cancers such as endometrial, stomach, breast, ovarian, small bowel, pancreatic, prostate, urinary tract, kidney, and liver cancer. Genetic testing is recommended for anyone diagnosed with colorectal cancer, regardless of age.
Breast cancer (BRCA) mutations are inherited in an autosomal dominant pattern and significantly increase the risk of developing breast, ovarian, prostate, and pancreatic cancer. These cancers tend to occur at a younger age than in the general population. While there is a possible link to colorectal pathology, other genetic syndromes should be considered first when looking for a genetic cause of cancer.
Cowden syndrome is a rare genetic condition characterized by benign growths called hamartomas on various parts of the body. It increases the risk of developing breast, thyroid, or endometrial cancer but has no association with colorectal cancer.
Familial adenomatous polyposis is an autosomal dominant condition that causes widespread colorectal adenomas, with polyps usually developing in late childhood. This greatly increases the risk of colorectal cancer, and prophylactic colectomy is often performed. Screening is recommended for those with an affected first-degree relative or multiple polyps detected on colonoscopy.
Von Hippel-Landau (VHL) syndrome is an autosomal dominant condition that causes multiple benign tumors and cysts in various parts of the body, including the brain, spinal cord, eyes, adrenals, kidneys, and pancreas. It increases the risk of renal and pancreatic cancer but has no association with colorectal cancer.
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This question is part of the following fields:
- Haematology/Oncology
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Question 36
Correct
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A 47-year-old man visits his doctor for a routine follow-up blood test that reveals elevated levels of a tumour marker in his blood. Which of the following is most commonly linked to increased levels of serum alpha-fetoprotein (AFP)?
Your Answer: Hepatocellular carcinoma
Explanation:Tumour Markers for Common Cancers
Tumour markers are substances produced by cancer cells that can be detected in the blood. They are used to help diagnose and monitor the progression of cancer. Here are the most common tumour markers associated with some of the most prevalent cancers:
Hepatocellular carcinoma: Alpha-fetoprotein (AFP) is the most likely tumour marker associated with this type of liver cancer, which often develops in people with chronic liver diseases.
Breast cancer: Cancer antigen 15-3 (CA 15-3) is the most likely tumour marker associated with breast cancer, which affects both men and women.
Colorectal cancer: Carcinoembryonic antigen (CEA) is the most likely tumour marker associated with colorectal cancer, which can develop from polyps in the colon or rectum.
Pancreatic cancer: CA 19-9 is the most likely tumour marker associated with pancreatic cancer, which is often difficult to detect in its early stages.
Prostate cancer: Prostate-specific antigen (PSA) is the most likely tumour marker associated with prostate cancer, which is the most common cancer in men.
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This question is part of the following fields:
- Haematology/Oncology
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Question 37
Correct
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A 50-year-old man has presented to the emergency department with a 2-day history of bloody diarrhoea 10 times per day associated with colicky abdominal pain.
Observations are as follows: blood pressure 100/60 mmHg, pulse 90/min, respiratory rate 15/min, temperature 37.8ºC, oxygen saturation 97% on air. The examination is unremarkable apart from diffuse abdominal tenderness.
Stool analysis revealed Campylobacter jejuni.
What is the first-line treatment?Your Answer: Clarithromycin
Explanation:If a patient experiences severe symptoms of Campylobacter infection such as bloody diarrhea and more than eight stools per day, treatment with clarithromycin may be necessary. While Campylobacter infection is typically self-limiting, the British National Formulary (BNF) recommends antibiotics for severe cases or for immunocompromised patients. NICE also advises antibiotic treatment for severe symptoms or if symptoms persist for more than one week. Supportive treatment may be sufficient for mild symptoms in immunocompetent patients. Ciprofloxacin is an alternative to clarithromycin, but strains with decreased sensitivity to ciprofloxacin are frequently isolated. Metronidazole and oral vancomycin are not recommended for Campylobacter treatment, but are first-line options for Clostridium difficile.
Campylobacter: The Most Common Bacterial Cause of Intestinal Disease in the UK
Campylobacter is a Gram-negative bacillus that is responsible for causing infectious intestinal disease in the UK. The bacteria is primarily spread through the faecal-oral route and has an incubation period of 1-6 days. Symptoms of Campylobacter infection include a prodrome of headache and malaise, diarrhoea (often bloody), and abdominal pain that may mimic appendicitis.
In most cases, Campylobacter infection is self-limiting and does not require treatment. However, the British National Formulary (BNF) recommends treatment with antibiotics if the patient is immunocompromised or if symptoms are severe (high fever, bloody diarrhoea, or more than eight stools per day) and have lasted for more than one week. The first-line antibiotic for Campylobacter infection is clarithromycin, although ciprofloxacin is an alternative. It is important to note that strains with decreased sensitivity to ciprofloxacin are frequently isolated.
Complications of Campylobacter infection may include Guillain-Barre syndrome, reactive arthritis, septicaemia, endocarditis, and arthritis. It is important to seek medical attention if symptoms are severe or persist for an extended period of time.
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This question is part of the following fields:
- Infectious Diseases
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Question 38
Correct
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You are assisting in the care of a 65-year-old man who has been hospitalized for chest pain. He has a medical history of hypertension, angina, and is a current smoker of 20 cigarettes per day. Upon admission, blood tests were conducted in the Emergency Department and revealed the following results:
- Na+ 133 mmol/l
- K+ 3.3 mmol/l
- Urea 4.5 mmol/l
- Creatinine 90 µmol/l
What is the most likely cause of the electrolyte abnormalities observed in this patient?Your Answer: Bendroflumethiazide therapy
Explanation:Hyponatraemia and hypokalaemia are caused by bendroflumethiazide, while spironolactone is linked to hyperkalaemia. Smoking would only be significant if the patient had lung cancer that resulted in syndrome of inappropriate ADH secretion, but there is no evidence of this in the given scenario.
Thiazide diuretics are medications that work by blocking the thiazide-sensitive Na+-Cl− symporter, which inhibits sodium reabsorption at the beginning of the distal convoluted tubule (DCT). This results in the loss of potassium as more sodium reaches the collecting ducts. While loop diuretics are better for reducing overload, thiazide diuretics have a role in the treatment of mild heart failure. Bendroflumethiazide was commonly used for managing hypertension, but recent NICE guidelines recommend other thiazide-like diuretics such as indapamide and chlortalidone.
Like any medication, thiazide diuretics have potential adverse effects. Common side effects include dehydration, postural hypotension, and electrolyte imbalances such as hyponatraemia, hypokalaemia, and hypercalcaemia. Gout, impaired glucose tolerance, and impotence are also possible. Rare adverse effects include thrombocytopaenia, agranulocytosis, photosensitivity rash, and pancreatitis.
To manage hypertension, current NICE guidelines recommend using thiazide-like diuretics such as indapamide or chlortalidone as first-line treatment. If blood pressure is not adequately controlled, a calcium channel blocker or ACE inhibitor can be added. If blood pressure remains high, a thiazide-like diuretic can be combined with a calcium channel blocker or ACE inhibitor. In some cases, a beta-blocker or aldosterone antagonist may also be added. Regular monitoring and adjustment of medication is necessary to ensure optimal blood pressure control.
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This question is part of the following fields:
- Renal Medicine/Urology
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Question 39
Incorrect
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A 32-year-old man presents with a recent change in bowel habit and is scheduled for outpatient sigmoidoscopy. He reports passing 3 stools daily with some mucus but no blood. The patient is in good overall health, with stable vital signs and normal blood test results. He has no known allergies and is not taking any medications at present.
During the sigmoidoscopy, the patient is found to have localised proctitis, with no inflammation detected further up the gastrointestinal tract. Based on these findings, the patient is diagnosed with ulcerative colitis and receives appropriate counselling.
What would be the most effective drug management approach for this patient's current symptoms?Your Answer: Oral steroids
Correct Answer: Rectal aminosalicylates
Explanation:For a mild-moderate flare of distal ulcerative colitis, the recommended first-line treatment is rectal aminosalicylates. This is particularly effective if the inflammation is limited to the rectum. If rectal aminosalicylates are not effective, oral aminosalicylates may be used in combination with or instead of the topical treatment. However, if the patient has contraindications or intolerances to aminosalicylates, topical or oral steroids may be preferred. Intravenous steroids are typically reserved for severe flares of colitis with symptoms such as frequent bloody stools, systemic upset, anemia, or elevated inflammatory markers.
Ulcerative colitis can be managed through inducing and maintaining remission. The severity of the condition is classified as mild, moderate, or severe based on the number of stools and presence of systemic upset. Treatment for mild-to-moderate cases of proctitis involves using topical aminosalicylate, while proctosigmoiditis and left-sided ulcerative colitis may require a combination of oral and topical medications. Extensive disease may require a high-dose oral aminosalicylate and topical treatment. Severe colitis should be treated in a hospital with intravenous steroids or ciclosporin. Maintaining remission can involve using a low maintenance dose of an oral aminosalicylate or oral azathioprine/mercaptopurine. Methotrexate is not recommended, but probiotics may prevent relapse in mild to moderate cases.
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This question is part of the following fields:
- Gastroenterology/Nutrition
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Question 40
Correct
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A 28-year-old woman has a Mirena intrauterine device inserted for birth control on day 10 of her menstrual cycle. She has not engaged in sexual activity since her last period. What is the duration required before it can be considered a reliable contraceptive method?
Your Answer: Immediately
Explanation:Contraceptives – Time to become effective (if not used on the first day of period):
Immediate: IUD
2 days: Progestin-only pill (POP)
7 days: Combined oral contraceptive (COC), injection, implant, intrauterine system (IUS)Intrauterine contraceptive devices include copper IUDs and levonorgestrel-releasing IUS. Both are over 99% effective. The IUD prevents fertilization by decreasing sperm motility, while the IUS prevents endometrial proliferation and thickens cervical mucus. Potential problems include heavier periods with IUDs and initial bleeding with the IUS. There is a small risk of uterine perforation, ectopic pregnancy, and infection. New IUS systems, such as Jaydess® and Kyleena®, have smaller frames and less levonorgestrel, resulting in lower serum levels and different rates of amenorrhea.
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This question is part of the following fields:
- Reproductive Medicine
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Question 41
Correct
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A 63-year-old patient with type 2 diabetes mellitus complains of a 'rash' on their left shin. The rash has increased in size over the last two days and is now a painful, hot, red area on their anterior left shin that spreads around to the back of the leg. The patient is feeling well overall, and it is decided that oral treatment is the best course of action. The patient has a history of penicillin allergy. What is the best antibiotic to prescribe?
Your Answer: Clarithromycin
Explanation:Understanding Cellulitis: Symptoms, Diagnosis, and Treatment
Cellulitis is a condition characterized by inflammation of the skin and subcutaneous tissues caused by bacterial infection, usually Streptococcus pyogenes or Staphylcoccus aureus. It commonly occurs on the shins and is accompanied by symptoms such as erythema, pain, and swelling. In some cases, patients may also experience systemic upset, including fever.
The diagnosis of cellulitis is typically made based on clinical presentation, and no further investigations are required in primary care. However, blood tests and cultures may be requested if the patient is admitted to the hospital and sepsis is suspected.
To guide the management of patients with cellulitis, healthcare providers may use the Eron classification system. Patients with Eron Class III or IV cellulitis, severe or rapidly deteriorating cellulitis, or certain risk factors such as immunocompromisation or significant lymphoedema should be admitted for intravenous antibiotics. Patients with Eron Class II cellulitis may not require admission if appropriate facilities and expertise are available in the community to administer intravenous antibiotics and monitor the patient.
The first-line treatment for mild to moderate cellulitis is flucloxacillin, while clarithromycin, erythromycin (in pregnancy), or doxycycline may be used in patients allergic to penicillin. Patients with severe cellulitis should be offered co-amoxiclav, cefuroxime, clindamycin, or ceftriaxone.
Overall, understanding the symptoms, diagnosis, and treatment of cellulitis is crucial for effective management of this common bacterial infection.
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This question is part of the following fields:
- Infectious Diseases
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Question 42
Correct
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A 48-year-old male patient comes to the GP clinic complaining of pain and redness on his left upper eyelid. Upon examination, a tender papule with erythema is found at the left eyelid margin, with a small area of pus discharge. Additionally, there is slight redness of the conjunctiva. What is the probable diagnosis?
Your Answer: Hordeolum externum
Explanation:The individual is experiencing an infection in the glands of their external eyelid, which is classified as a type of stye known as hordeolum externum. It should be noted that a chalazion, also referred to as a meibomian cyst, typically occurs on the internal eyelid. Blepharitis, on the other hand, is characterized by inflammation of the eyelid margins and does not typically result in a lump. Ectropion refers to the outward turning of the eyelids, while acne vulgaris does not typically impact the eyelids.
Eyelid problems are quite common and can include a variety of issues. One such issue is blepharitis, which is inflammation of the eyelid margins that can cause redness in the eye. Another problem is a stye, which is an infection of the glands in the eyelids. Chalazion, also known as Meibomian cyst, is another eyelid problem that can occur. Entropion is when the eyelids turn inward, while ectropion is when they turn outward.
Styes can come in different forms, such as external or internal. An external stye is an infection of the glands that produce sebum or sweat, while an internal stye is an infection of the Meibomian glands. Treatment for styes typically involves hot compresses and pain relief, with topical antibiotics only being recommended if there is also conjunctivitis present. A chalazion, on the other hand, is a painless lump that can form in the eyelid due to a retention cyst of the Meibomian gland. While most cases will resolve on their own, some may require surgical drainage.
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This question is part of the following fields:
- Ophthalmology
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Question 43
Correct
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A 67-year-old woman presents to the Surgical Assessment Unit with mild abdominal pain that has been occurring on and off for several weeks. However, the pain has now intensified, causing her to feel nauseated and lose her appetite. She has not had a bowel movement in three days and has not noticed any blood in her stool. Upon examination, her temperature is 38.2 °C, her heart rate is 110 beats per minute, and her blood pressure is 124/82 mmHg. Her abdomen is soft, but she experiences tenderness in the left lower quadrant. Bowel sounds are present but reduced, and rectal examination reveals tenderness only. She has no history of gastrointestinal problems and only sees her General Practitioner for osteoarthritis. She has not had a sexual partner since her husband passed away two years ago. Based on this information, what is the most likely diagnosis?
Your Answer: Diverticulitis
Explanation:Understanding Diverticulitis and Other Bowel Conditions in Older Adults
As people age, they may develop various conditions affecting their bowel health. One such condition is diverticulosis, which is characterized by the presence of diverticula in the colon. While most people with diverticulosis do not experience symptoms, some may develop diverticular disease, which can cause left lower quadrant abdominal pain that worsens after eating and improves after bowel movements. Diverticulitis, on the other hand, refers to inflammation of the diverticula, which can lead to fever and tachycardia. Risk factors for diverticular disease include low dietary fiber, obesity, and smoking. Complications of diverticulitis may include perforation, obstruction, or abscess formation.
Another bowel condition that may affect older adults is inflammatory bowel disease, which is typically diagnosed in young adulthood but may also occur in people aged 50-70. Unlike diverticulosis, inflammatory bowel disease can cause symptoms such as diarrhea, rectal bleeding, and weight loss.
When evaluating a patient with symptoms suggestive of bowel disease, it is important to consider other potential diagnoses, such as colorectal cancer and pelvic inflammatory disease. While the former may present with similar symptoms as diverticulitis, the latter is more common in women and may mimic gastrointestinal conditions.
In summary, understanding the various bowel conditions that may affect older adults can help healthcare providers make accurate diagnoses and provide appropriate treatment.
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This question is part of the following fields:
- Gastroenterology/Nutrition
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Question 44
Incorrect
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A 21-year-old young woman attends surgery concerned about painful periods. She reports normal blood loss and a regular cycle; she is not sexually active. Pelvic examination is normal.
Which of the following is the most appropriate treatment choice?Your Answer: Microgynon®
Correct Answer: Mefenamic acid
Explanation:According to NICE guidelines, non-steroidal anti-inflammatory drugs (NSAIDs) like ibuprofen, naproxen, or mefenamic acid should be the first-line treatment for primary dysmenorrhoea, unless contraindicated. Combined oral contraceptives (COCs) containing ethinylestradiol and norethisterone, norgestimate, or levonorgestrel are also recommended for women who do not wish to conceive. However, for a non-sexually active woman, a non-hormonal drug would be more appropriate. Paracetamol can be prescribed if NSAIDs are not tolerated or contraindicated. Tranexamic acid is useful for menorrhagia, not dysmenorrhoea. The diagnosis of primary dysmenorrhoea is likely if menstrual pain starts 6-12 months after menarche, before menstruation, and lasts up to 72 hours, with non-gynaecological symptoms present, and a normal pelvic examination.
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This question is part of the following fields:
- Reproductive Medicine
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Question 45
Correct
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Neuropathic pain typically does not improve with opioids. Nevertheless, if conventional treatments have been ineffective, which opioid should be considered for initiation in elderly patients?
Your Answer: Tramadol
Explanation:Understanding Neuropathic Pain and its Management
Neuropathic pain is a type of pain that occurs due to damage or disruption of the nervous system. It is a complex condition that is often difficult to treat and does not respond well to standard painkillers. Examples of neuropathic pain include diabetic neuropathy, post-herpetic neuralgia, trigeminal neuralgia, and prolapsed intervertebral disc.
To manage neuropathic pain, the National Institute for Health and Care Excellence (NICE) updated their guidance in 2013. The first-line treatment options include amitriptyline, duloxetine, gabapentin, or pregabalin. If the first-line drug treatment does not work, patients may try one of the other three drugs. Unlike standard painkillers, drugs for neuropathic pain are typically used as monotherapy, meaning that if they do not work, patients should switch to a different drug rather than adding another one.
Tramadol may be used as rescue therapy for exacerbations of neuropathic pain, while topical capsaicin may be used for localized neuropathic pain, such as post-herpetic neuralgia. Pain management clinics may also be useful for patients with resistant problems. However, it is important to note that for some specific conditions, such as trigeminal neuralgia, the guidance may vary, and carbamazepine may be used as a first-line treatment. Overall, understanding neuropathic pain and its management is crucial for improving the quality of life for patients suffering from this condition.
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This question is part of the following fields:
- Neurology
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Question 46
Correct
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A 32-year-old woman with a 9-month history of weight loss, intermittent bloody mucus stools and abdominal pain undergoes a colonoscopy, which shows a mucosal ‘cobblestone’ pattern and skip lesions. She drinks approximately four units of alcohol a week and has a smoking history of five pack years.
Which of the following is the most appropriate lifestyle advice for this patient?Your Answer: Stop smoking
Explanation:Lifestyle Advice for Patients with Inflammatory Bowel Disease
Inflammatory bowel disease (IBD) is a chronic inflammatory process that can affect any part of the gastrointestinal tract. Patients with IBD may experience symptoms such as diarrhoea, abdominal pain, and bleeding. Here are some lifestyle advice for patients with IBD:
Stop smoking: Research suggests that smoking can make Crohn’s disease worse. Smokers with Crohn’s disease have more severe symptoms and complications, require more medication, and are more likely to need surgery.
Eat a balanced diet: Patients with IBD may need to be careful about the amount and type of fibre in their diet. During flare-ups, it may be helpful to reduce the amount of insoluble fibre consumed, but, once the flare-up is over, it is important to increase fibre intake again.
Avoid alcohol: Although there is no evidence that alcohol consumption worsens IBD symptoms, alcohol can affect the lining of the gastrointestinal tract and interact with certain medications.
Quit smoking: Although smoking may delay or even prevent ulcerative colitis, the health risks of smoking outweigh any benefits seen in UC, and strongly discourage smoking in everyone, whether or not they have IBD.
Consider probiotics: The role of probiotics in IBD is not fully understood, but their use can be discussed with a General Practitioner or dietitian. More research is needed on their general effectiveness.
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This question is part of the following fields:
- Gastroenterology/Nutrition
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Question 47
Correct
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A 28-year-old man who is HIV positive has been diagnosed with seborrhoeic dermatitis. What are the two most commonly associated complications with this condition?
Your Answer: Blepharitis and otitis externa
Explanation:Seborrhoeic dermatitis often leads to otitis externa and blepharitis as complications. Although rare, alopecia may occur if a severe secondary infection develops.
Understanding Seborrhoeic Dermatitis in Adults
Seborrhoeic dermatitis is a chronic skin condition that affects around 2% of the general population. It is caused by an inflammatory reaction related to the overgrowth of a fungus called Malassezia furfur, which is a normal inhabitant of the skin. The condition is characterized by eczematous lesions that appear on the sebum-rich areas of the body, such as the scalp, periorbital, auricular, and nasolabial folds. It can also lead to the development of otitis externa and blepharitis.
Seborrhoeic dermatitis is often associated with other medical conditions, such as HIV and Parkinson’s disease. The management of the condition depends on the affected area. For scalp disease, over-the-counter preparations containing zinc pyrithione and tar are usually the first-line treatment. If these are not effective, ketoconazole is the preferred second-line agent. Selenium sulphide and topical corticosteroids may also be useful.
For the face and body, topical antifungals such as ketoconazole and topical steroids are often used. However, it is important to use steroids for short periods only to avoid side effects. Seborrhoeic dermatitis can be difficult to treat, and recurrences are common. Therefore, it is important to work closely with a healthcare provider to manage the condition effectively.
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This question is part of the following fields:
- Dermatology
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Question 48
Incorrect
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A 50-year-old man collapses at work with chest pain. He is rushed to the Emergency Department where he is diagnosed with ST-elevated myocardial infarction. After undergoing successful percutaneous coronary intervention, he is deemed fit for discharge home after a 3-day hospital stay. The patient had no prior medical history and was not taking any regular medications. He also has no known allergies. What is the recommended combination of medications for his discharge?
Your Answer: Atorvastatin, amlodipine, clopidogrel and bisoprolol
Correct Answer: Atorvastatin, ramipril, clopidogrel, aspirin and carvedilol
Explanation:After an ACS, it is recommended that all patients receive a combination of medications to reduce the risk of future coronary events. This includes dual antiplatelet therapy (aspirin plus a second antiplatelet agent), an ACE inhibitor, a beta-blocker, and a statin. The correct option for this patient would be a combination of atorvastatin, ramipril, clopidogrel, aspirin, and carvedilol. Atorvastatin is given to reduce cholesterol and prevent further coronary plaque formation, while ramipril is used to prevent cardiac remodeling and preserve left ventricular systolic function. Dual antiplatelet therapy with aspirin and clopidogrel is given to reduce the risk of thrombosis formation after PCI. Finally, beta-blockers such as carvedilol are used to improve prognosis, reduce the risk of arrhythmias, and have cardioprotective effects.
Myocardial infarction (MI) is a serious condition that requires proper management to prevent further complications. In 2013, NICE released guidelines on the secondary prevention of MI. One of the key recommendations is the use of four drugs: dual antiplatelet therapy (aspirin plus a second antiplatelet agent), ACE inhibitor, beta-blocker, and statin. Patients are also advised to adopt a Mediterranean-style diet and engage in regular exercise. Sexual activity may resume four weeks after an uncomplicated MI, and PDE5 inhibitors may be used six months after the event.
Most patients with acute coronary syndrome are now given dual antiplatelet therapy, with ticagrelor and prasugrel being the preferred options. The treatment period for these drugs is 12 months, after which they should be stopped. However, this period may be adjusted for patients at high risk of bleeding or further ischaemic events. Additionally, patients with heart failure and left ventricular systolic dysfunction should be treated with an aldosterone antagonist within 3-14 days of the MI, preferably after ACE inhibitor therapy.
Overall, the NICE guidelines provide a comprehensive approach to the secondary prevention of MI. By following these recommendations, patients can reduce their risk of further complications and improve their overall health outcomes.
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This question is part of the following fields:
- Cardiovascular
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Question 49
Correct
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A 35-year-old woman comes to the clinic with complaints of swelling, pain and stiffness in her fingers on both hands for the past few weeks. During examination, she is found to be afebrile and her fingers are generally swollen and sausage-shaped. Her nails are also pitted with onycholysis.
What is the most probable diagnosis for her condition?
Your Answer: Psoriatic arthritis
Explanation:Differentiating Types of Arthritis: A Brief Overview
Arthritis is a common condition that affects millions of people worldwide. However, not all types of arthritis are the same. Here is a brief overview of some of the most common types of arthritis and how they differ from each other.
Psoriatic Arthritis: This type of arthritis is often seen in people with psoriasis and is characterized by painful, swollen joints. Dactylitis, or swelling of the whole digit causing ‘sausage-shaped’ fingers or toes, is a common feature. Nail changes, such as pitting and onycholysis, are also associated with psoriatic arthritis.
Gonococcal Arthritis: This is a type of septic arthritis caused by the sexually transmitted infection Neisseria gonorrhoeae. It typically presents with fever, a rash, and an acutely swollen joint, but there is no nail involvement.
Osteoarthritis (OA): This is a disease of synovial joints in which there is a loss of cartilage. It is uncommon for OA to be diagnosed in anyone under the age of 45. Dactylitis and nail changes are not associated with OA.
Reactive Arthritis: This is a sterile arthritis occurring following an infection, usually either an acute gastrointestinal or sexually transmitted infection. The clinical features of dactylitis and nail changes described in this case are not associated with reactive arthritis.
Rheumatoid Arthritis (RA): This is an inflammatory condition that tends to affect the small joints of the hands but can affect any synovial joint. Nail changes are not usually associated with RA, and general swelling of the whole digit (dactylitis) is not a typical feature.
In conclusion, understanding the different types of arthritis and their unique features is important for accurate diagnosis and appropriate treatment.
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This question is part of the following fields:
- Musculoskeletal
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Question 50
Correct
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A 58-year-old man presents to his doctor with concerns about his chest. He feels embarrassed and believes that he is developing breast tissue. Upon examination, bilateral gynaecomastia is the only abnormal finding. The patient has a medical history of hypertension, high cholesterol, type 2 diabetes, and benign prostatic hyperplasia. Which medication is the most probable cause of this condition?
Your Answer: Finasteride
Explanation:Gynaecomastia in males can have various underlying causes, some of which may be serious, such as endocrine disorders, liver failure, kidney failure, or malignancy. Additionally, medication-related causes should be considered, as in the case of this patient who was taking finasteride, which is known to cause gynaecomastia. Finasteride functions by inhibiting 5-alpha-reductase, which reduces dihydrotestosterone production and shrinks the prostate. However, it can also lead to side effects such as sexual dysfunction and gynaecomastia.
Understanding Finasteride: Its Uses and Side Effects
Finasteride is a medication that works by inhibiting the activity of 5 alpha-reductase, an enzyme responsible for converting testosterone into dihydrotestosterone. This drug is commonly used to treat benign prostatic hyperplasia and male-pattern baldness.
However, like any medication, finasteride has its own set of adverse effects. Some of the most common side effects include impotence, decreased libido, ejaculation disorders, gynaecomastia, and breast tenderness. It is important to note that finasteride can also cause decreased levels of serum prostate-specific antigen.
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This question is part of the following fields:
- Pharmacology/Therapeutics
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Correct
00
Incorrect
00
:
00
:
00
Session Time
00
:
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Average Question Time (
Mins)