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Question 1
Incorrect
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A 48-year-old man presents to the emergency department with his spouse. He is experiencing significant swelling of his tongue and lips, rendering him unable to speak. His wife reports that his symptoms have worsened during their wait, and she is unsure of the cause as he has no known allergies. However, she does mention that he was recently prescribed a new medication by his primary care physician.
Which of the following medications is the most probable culprit?Your Answer: Simvastatin
Correct Answer: Ramipril
Explanation:Although it is possible for the man to have been prescribed any of the medications listed, it is evident that he is experiencing angioedema, as indicated by the swelling of his tongue and lips. Ramipril, an ACE inhibitor, is the medication most commonly associated with this side effect. Even if the patient has no history of allergies or negative reactions to ACE inhibitors, angioedema can still occur. While the likelihood of this happening is low, it is important to keep in mind due to the large number of patients taking this type of medication and the potential complications associated with angioedema.
Angiotensin-converting enzyme (ACE) inhibitors are commonly used as the first-line treatment for hypertension and heart failure in younger patients. However, they may not be as effective in treating hypertensive Afro-Caribbean patients. These inhibitors are also used to treat diabetic nephropathy and for secondary prevention of ischaemic heart disease. The mechanism of action of ACE inhibitors is to inhibit the conversion of angiotensin I to angiotensin II. They are metabolized in the liver through phase 1 metabolism.
ACE inhibitors may cause side effects such as cough, which occurs in around 15% of patients and may occur up to a year after starting treatment. This is thought to be due to increased bradykinin levels. Angioedema may also occur up to a year after starting treatment. Hyperkalaemia and first-dose hypotension are other potential side effects, especially in patients taking diuretics. ACE inhibitors should be avoided during pregnancy and breastfeeding, and caution should be exercised in patients with renovascular disease, aortic stenosis, or hereditary or idiopathic angioedema.
Patients receiving high-dose diuretic therapy (more than 80 mg of furosemide a day) are at an increased risk of hypotension when taking ACE inhibitors. Before initiating treatment, urea and electrolytes should be checked, and after increasing the dose, a rise in creatinine and potassium may be expected. Acceptable changes include an increase in serum creatinine up to 30% from baseline and an increase in potassium up to 5.5 mmol/l. Patients with undiagnosed bilateral renal artery stenosis may experience significant renal impairment. The current NICE guidelines provide a flow chart for the management of hypertension.
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This question is part of the following fields:
- Immunology/Allergy
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Question 2
Correct
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You want to screen a 60-year-old patient for hepatitis B. What is the most appropriate test to conduct?
Your Answer: HBsAg
Explanation:If the result of the anti-HBs test is positive, it means that the person is immune to hepatitis B either through vaccination or previous infection. On the other hand, a positive HBsAg test indicates that the person is currently infected with hepatitis B, either in its acute or chronic form.
Interpreting hepatitis B serology is an important skill that is still tested in medical exams. It is crucial to keep in mind a few key points. The surface antigen (HBsAg) is the first marker to appear and triggers the production of anti-HBs. If HBsAg is present for more than six months, it indicates chronic disease, while its presence for one to six months implies acute disease. Anti-HBs indicates immunity, either through exposure or immunization, and is negative in chronic disease. Anti-HBc indicates previous or current infection, with IgM anti-HBc appearing during acute or recent hepatitis B infection and persisting IgG anti-HBc. HbeAg is a marker of infectivity and HBV replication.
To illustrate, if someone has been previously immunized, their anti-HBs will be positive, while all other markers will be negative. If they had hepatitis B more than six months ago but are not a carrier, their anti-HBc will be positive, and HBsAg will be negative. However, if they are now a carrier, both anti-HBc and HBsAg will be positive. If HBsAg is present, it indicates an ongoing infection, either acute or chronic if present for more than six months. On the other hand, anti-HBc indicates that the person has caught the virus, and it will be negative if they have been immunized.
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This question is part of the following fields:
- Infectious Diseases
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Question 3
Incorrect
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A 7-year-old boy comes to his General Practitioner with his mother, having just woken up from a nap and experienced twitching of the left side of his mouth. He complains of a ‘buzzing’ sensation in his lips. His speech is unclear and he drooled from the left side of his mouth. His symptoms resolved within two minutes and he remained conscious throughout the episode.
What is the most probable diagnosis?Your Answer: Juvenile myoclonic epilepsy (JME)
Correct Answer: Benign rolandic epilepsy (BRE)
Explanation:Types of Epilepsy: Characteristics and Differences
Epilepsy is a neurological disorder characterized by recurrent seizures. There are different types of epilepsy, each with its own set of clinical features and diagnostic criteria. Here are some of the most common types of epilepsy and their distinguishing characteristics:
Benign Rolandic Epilepsy (BRE)
BRE, also known as childhood epilepsy with centrotemporal spikes, is characterized by seizures that often occur during sleep or just before waking. Children may experience paraesthesia of their lips, tongue, or the inside of their mouth, which can interfere with speech and cause drooling. Twitching of one side of the mouth or face often develops, followed by twitching in the limbs on the same side. Seizures typically last less than two minutes, and the child remains conscious.Absence Seizures
Absence seizures are a form of generalized epilepsy that impairs consciousness. Children are most commonly affected, and the seizures usually last only a few seconds but may occur many times a day. During the absence, the child stops activity and stares blankly, not responding to questions. There may be lip-smacking or facial tics. An EEG will reveal a characteristic spike-and-wave activity.Temporal Lobe Epilepsy (TLE)
TLE is characterized by partial and/or focal seizures that may be simple or complex, with some loss of awareness. The clinical features of TLE reflect the function of the temporal lobe, primarily speech, taste, smell, and memory. Presentations may include déjà vu, gastrointestinal disturbance, amnesia during an attack, olfactory or gustatory hallucinations, and abnormal sensations crawling up the body. Repetitive vocalizations, automatism, and lip-smacking may be seen.Juvenile Myoclonic Epilepsy (JME)
JME describes generalized epilepsy that impairs consciousness. JME usually presents in later childhood, with a peak onset at 10–16 years. The defining seizure is myoclonic and usually occurs in the first hour after waking. These seizures occur as sudden jerks, which commonly involve the arms and/or trunk. However, any muscle may be affected. The patient is generally conscious while myoclonic jerks are occurring. Generalized tonic-clonic seizures often accompany myoclonic seizures in JME, which may lead to reduced consciousness.Infantile Spasms
Infantile spasms develop in the first year of life, with peak -
This question is part of the following fields:
- Paediatrics
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Question 4
Correct
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A 56-year-old HIV positive man presents to your clinic with complaints of haemoptysis and worsening shortness of breath after completing treatment for pneumocystis jirovecii pneumonia. A chest x-ray shows an apical mass in the right lung lobe. He responds well to treatment with itraconazole and steroids. What is the most probable diagnosis?
Your Answer: Aspergilloma
Explanation:Aspergilloma is a type of fungal growth that typically affects individuals with weakened immune systems or those who have pre-existing lung conditions like tuberculosis or emphysema. Common symptoms include coughing, fever, and coughing up blood. Treatment typically involves the use of antifungal medications like itraconazole.
Haemoptysis, or coughing up blood, can be caused by a variety of conditions. Lung cancer is a common cause, especially in individuals with a history of smoking. Symptoms of malignancy, such as weight loss and anorexia, may also be present. Pulmonary oedema, which is the accumulation of fluid in the lungs, can cause dyspnoea (shortness of breath) and is often accompanied by bibasal crackles and an S3 heart sound. Tuberculosis, a bacterial infection that primarily affects the lungs, can cause fever, night sweats, anorexia, and weight loss. Pulmonary embolism, a blockage in the pulmonary artery, can cause pleuritic chest pain, tachycardia (rapid heart rate), and tachypnoea (rapid breathing). Lower respiratory tract infections, such as pneumonia, typically have an acute onset and are characterized by a purulent cough. Bronchiectasis, a chronic lung condition, is often associated with a long history of cough and daily production of purulent sputum. Mitral stenosis, a narrowing of the mitral valve in the heart, can cause dyspnoea, atrial fibrillation, and a malar flush on the cheeks. Aspergilloma, a fungal infection that often occurs in individuals with a past history of tuberculosis, can cause severe haemoptysis and is characterized by a rounded opacity on chest x-ray. Granulomatosis with polyangiitis, an autoimmune disease, can affect both the upper and lower respiratory tracts and is associated with symptoms such as epistaxis (nosebleeds), sinusitis, dyspnoea, and haemoptysis. Goodpasture’s syndrome, another autoimmune disease, can cause haemoptysis and systemic symptoms such as fever and nausea, as well as glomerulonephritis (inflammation of the kidney’s filtering units).
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This question is part of the following fields:
- Respiratory Medicine
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Question 5
Correct
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A 38-year-old man presents with pruritic, violaceous papules in a polygonal pattern on the flexor surface of his forearms. Several of these papules have merged to form plaques. What is the probable diagnosis?
Your Answer: Lichen planus
Explanation:Lichen planus is a rash that appears as purple, itchy, polygonal papules on the flexor surfaces of the body. It is often accompanied by Wickham’s striae on the surface and can also affect the mouth. In contrast, lichen sclerosus is characterized by white, itchy spots that commonly appear on the vulva of older women.
Understanding Lichen Planus
Lichen planus is a skin condition that is believed to be caused by an immune response, although the exact cause is unknown. It is characterized by an itchy, papular rash that typically appears on the palms, soles, genitalia, and flexor surfaces of the arms. The rash often has a polygonal shape and a distinctive white-lines pattern on the surface, known as Wickham’s striae. In some cases, new skin lesions may appear at the site of trauma, a phenomenon known as the Koebner phenomenon.
Oral involvement is common in around 50% of patients, with a white-lace pattern often appearing on the buccal mucosa. Nail changes may also occur, including thinning of the nail plate and longitudinal ridging. Lichenoid drug eruptions can be caused by certain medications, such as gold, quinine, and thiazides.
The main treatment for lichen planus is potent topical steroids. For oral lichen planus, benzydamine mouthwash or spray is recommended. In more extensive cases, oral steroids or immunosuppression may be necessary.
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This question is part of the following fields:
- Dermatology
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Question 6
Incorrect
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Samantha, 74, visits her doctor complaining of jaundice. She is also a heavy drinker, consuming around 30-35 units per week. During the examination, a palpable gallbladder is detected, but there is no history of abdominal pain. The doctor orders blood tests, and the results are as follows:
- Albumin: 28 g/L
- Alk Phos: 320 U/L
- ALT: 90 U/L
- Bilirubin: 100 umol/L
- INR: 1.5
- GGT: 120 U/L
What is the most likely diagnosis for Samantha?Your Answer: Alcoholic hepatitis
Correct Answer: Pancreatic cancer
Explanation:Pancreatic cancer is the correct answer for this question, as indicated by Courvoisier’s sign. This sign suggests that a painless, enlarged gallbladder and mild jaundice are unlikely to be caused by gallstones, but rather by a malignancy of the pancreas or biliary tree. While alcoholic hepatitis and primary biliary cirrhosis are possible differentials, the presence of a painless, enlarged gallbladder makes them less likely. Paracetamol overdose is not a likely cause, as it would not result in a painless, palpable gallbladder and jaundice is not typically associated with this type of overdose.
Understanding Pancreatic Cancer: Risk Factors, Symptoms, and Management
Pancreatic cancer is a type of cancer that is often diagnosed late due to its non-specific symptoms. Adenocarcinomas, which occur at the head of the pancreas, make up over 80% of pancreatic tumors. Risk factors for pancreatic cancer include increasing age, smoking, diabetes, chronic pancreatitis, hereditary non-polyposis colorectal carcinoma, and genetic mutations such as BRCA2 and KRAS.
Symptoms of pancreatic cancer can include painless jaundice, pale stools, dark urine, pruritus, anorexia, weight loss, epigastric pain, loss of exocrine and endocrine function, and atypical back pain. Migratory thrombophlebitis, also known as Trousseau sign, is more common in pancreatic cancer than in other cancers.
Diagnosis of pancreatic cancer can be made through ultrasound or high-resolution CT scanning, which may show the double duct sign – simultaneous dilatation of the common bile and pancreatic ducts. However, less than 20% of patients are suitable for surgery at diagnosis. A Whipple’s resection, or pancreaticoduodenectomy, may be performed for resectable lesions in the head of the pancreas. Adjuvant chemotherapy is usually given following surgery, and ERCP with stenting may be used for palliation.
In summary, pancreatic cancer is a serious disease with non-specific symptoms that can be difficult to diagnose. Understanding the risk factors and symptoms can help with early detection and management.
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This question is part of the following fields:
- Gastroenterology/Nutrition
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Question 7
Correct
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A 35-year-old woman attends her first antenatal appointment at 10 weeks’ gestation. This is her second pregnancy. She has a history of hypertension and is taking medication for it. She is offered antenatal screening for chromosomal abnormalities, including Down syndrome.
Which of the following tests is used in antenatal screening for Down syndrome?Your Answer: Nuchal thickness
Explanation:Prenatal Screening Tests for Fetal Abnormalities
During pregnancy, various screening tests are conducted to detect any fetal abnormalities. One such test is the measurement of nuchal thickness, which is the fluid-filled sac between the back of the neck and the skin. An increase in thickness is associated with a decreased chance of normal birth and can detect 60-70% of Down syndrome cases. Other screening tests include measuring pregnancy-associated plasma protein-A (PAPP-A), b-human chorionic gonadotrophin (β-hCG), E3, and α-fetoprotein (AFP). Low PAPP-A, in combination with free β-hCG, is 65% accurate in diagnosing Down syndrome. The biparietal diameter (BPD) is the diameter across the skull and is associated with neurodevelopmental outcomes. Dehydroepiandrosterone sulfate is an adrenal androgen that is not influenced by pregnancy. Ultrasound assessment for herniation of the dural sac is used to screen for spina bifida. Utero-placental Doppler is used to identify at-risk women for pre-eclampsia and intrauterine growth restriction but is not useful in detecting Down syndrome.
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This question is part of the following fields:
- Genetics
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Question 8
Incorrect
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A 32-year-old woman who is 34 weeks pregnant has been found to have a urinary tract infection through routine dipstick testing. The cause is identified as group B streptococcus and treated with a brief course of oral antibiotics. What is the appropriate management plan for delivering her baby in a few weeks?
Your Answer: Caesarean section at 38 weeks
Correct Answer: Intrapartum antibiotics
Explanation:GBS bacteriuria is linked to an increased risk of chorioamnionitis and neonatal sepsis, therefore, the Royal College of Obstetricians and Gynaecologists recommends that women with GBS bacteriuria should receive intrapartum antibiotics along with appropriate treatment upon diagnosis. In cases where the patient is not allergic to penicillin, intravenous benzylpenicillin should be administered as soon as possible after the onset of labor and then every 4 hours until delivery. Postnatal antibiotic treatment is not necessary unless there are indications of neonatal infection. Caesarean section is not recommended. [RCOG Green-top Guideline No. 36]
Group B Streptococcus (GBS) is a common cause of severe infection in newborns. It is estimated that 20-40% of mothers carry GBS in their bowel flora, which can be passed on to their infants during labor and lead to serious infections. Prematurity, prolonged rupture of membranes, previous sibling GBS infection, and maternal pyrexia are all risk factors for GBS infection. The Royal College of Obstetricians and Gynaecologists (RCOG) has published guidelines on GBS management, which include not offering universal screening for GBS to all women and not offering screening based on maternal request. Women who have had GBS detected in a previous pregnancy should be offered intrapartum antibiotic prophylaxis (IAP) or testing in late pregnancy and antibiotics if still positive. IAP should also be offered to women with a previous baby with GBS disease, women in preterm labor, and women with a fever during labor. Benzylpenicillin is the preferred antibiotic for GBS prophylaxis.
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This question is part of the following fields:
- Reproductive Medicine
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Question 9
Incorrect
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A 49-year-old male comes to the emergency department complaining of progressive weakness in both legs that started with leg pain a week ago. Upon examination, there is a decrease in patellar reflex bilaterally, and the patient has 3/5 strength throughout the neurological examination in the lower limbs bilaterally, but normal sensation. The patient has no significant medical history and is not taking any regular medications. What is the most probable organism responsible for his symptoms?
Your Answer: Coxsackievirus
Correct Answer: Campylobacter jejuni
Explanation:The patient in this scenario is experiencing leg or back pain before the onset of weakness, which is a common symptom of Guillain-Barre syndrome. The ascending weakness of the legs, along with reduced reflexes and normal sensation, is a typical presentation of this disease.
Escherichia coli is a frequent cause of traveller’s diarrhoea and gastroenteritis, but it is not associated with Guillain-Barre syndrome.
Coxsackievirus is the most common cause of viral meningitis in adults, but it is not linked to Guillain-Barre syndrome.
Herpes simplex virus causes genital and labial sores, but it does not play a role in the development of this disease.
Understanding Guillain-Barre Syndrome and Miller Fisher Syndrome
Guillain-Barre syndrome is a condition that affects the peripheral nervous system and is often triggered by an infection, particularly Campylobacter jejuni. The immune-mediated demyelination of the peripheral nervous system occurs due to the cross-reaction of antibodies with gangliosides. Studies have shown a correlation between the clinical features of the syndrome and the presence of anti-ganglioside antibodies, particularly anti-GM1 antibodies, which are present in 25% of patients.
Miller Fisher syndrome is a variant of Guillain-Barre syndrome that is characterized by ophthalmoplegia, areflexia, and ataxia. Unlike other forms of Guillain-Barre syndrome, Miller Fisher syndrome usually presents as a descending paralysis, with the eye muscles typically affected first. In 90% of cases, anti-GQ1b antibodies are present.
Understanding the pathogenesis and clinical features of Guillain-Barre syndrome and Miller Fisher syndrome is crucial for accurate diagnosis and effective treatment. Further research is needed to fully understand the mechanisms behind these conditions and to develop more targeted therapies.
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This question is part of the following fields:
- Neurology
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Question 10
Incorrect
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A 12-year-old boy comes to the clinic with a history of headaches for the past 6 months. He reports experiencing these headaches once every few weeks, with each episode lasting for a day. Prior to the onset of the headache, he sees zig-zag lines. The headaches are typically on the right side of his head, accompanied by nausea and occasional vomiting. He finds some relief by sleeping in a dark, quiet room. Apart from this, he is healthy.
What is the initial approach to managing his condition?Your Answer: Sumatriptan nasal spray
Correct Answer: Oral ibuprofen
Explanation:The recommended initial treatment for paediatric migraines is ibuprofen. Sumatriptan nasal spray is only approved for use in children over the age of 12, and oral sumatriptan is not approved for those under 18. Codeine and oramorph are not recommended for treating migraines in children. Indomethacin is also not typically used for paediatric migraines.
Understanding Headaches in Children
Headaches are a common occurrence in children, with up to 50% of 7-year-olds and 80% of 15-year-olds experiencing at least one headache. Migraine without aura is the most common cause of primary headache in children, with a strong female preponderance after puberty. The International Headache Society has produced criteria for diagnosing pediatric migraine without aura, which includes headache attacks lasting 4-72 hours, with at least two of four specific features and accompanying symptoms such as nausea and vomiting.
When it comes to acute management, ibuprofen is considered more effective than paracetamol for pediatric migraine. Triptans may be used in children over 12 years old, but follow-up is required, and only sumatriptan nasal spray is licensed for use in young people. However, oral triptans are not currently licensed for those under 18 years old, and side effects may include tingling, heat, and pressure sensations.
Prophylaxis for pediatric migraine is limited, with no clear consensus guidelines. Pizotifen and propranolol are recommended as first-line preventatives, while valproate, topiramate, and amitriptyline are considered second-line preventatives. Tension-type headache is the second most common cause of headache in children, with diagnostic criteria including at least 10 previous headache episodes lasting from 30 minutes to 7 days, with specific pain characteristics and the absence of nausea or vomiting.
In summary, headaches in children are common, and migraine without aura is the most common primary headache. Acute management includes ibuprofen and triptans, while prophylaxis is limited. Tension-type headache is also a common cause of headache in children. It is important to seek medical advice if headaches are frequent or severe, or if there are any concerning symptoms such as neurological deficits or changes in behavior.
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This question is part of the following fields:
- Paediatrics
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Question 11
Correct
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A 14-year-old girl, who is a keen dancer, visits her General Practitioner with a painful rash on her foot. She says that it started several weeks ago and often stings. Examination reveals a red rash in the interdigital spaces, with small fissures and white exudate.
What is the most appropriate treatment option?Your Answer: Topical miconazole
Explanation:Understanding Topical Treatments for Skin Conditions
Athlete’s foot is a common fungal infection that affects the toe webs and is often caused by excess moisture. The first-line treatment for this condition is a topical antifungal such as miconazole or terbinafine cream, which should be used twice daily for four weeks. If there is no improvement, further investigations may be required, and oral antifungals may be prescribed. It is important to advise patients on foot hygiene and to avoid walking barefoot in communal areas.
Dithranol is a topical treatment for psoriasis, a condition that presents as large, scaly plaques with a symmetrical distribution. This is different from athlete’s foot, which is characterized by a moist, peeling rash between the toes. Emollients, which are topical moisturizers, are used for atopic eczema management and have no role in treating athlete’s foot.
Oral terbinafine is reserved for severe or extensive fungal infections that cannot be treated with topical antifungal agents. Finally, while an antifungal/topical steroid combination may reduce symptoms more rapidly in cases of inflamed tissue, it has no overall benefit. Moderately potent topical steroids such as eumovate are more appropriate for managing atopic eczema.
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This question is part of the following fields:
- Dermatology
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Question 12
Incorrect
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Which one of the following features is not present in pre-proliferative retinopathy in elderly diabetic patients?
Your Answer: Blot haemorrhages
Correct Answer: Neovascularisation
Explanation:Proliferative retinopathy is characterized by the presence of retinal neovascularization.
Understanding Diabetic Retinopathy
Diabetic retinopathy is a leading cause of blindness among adults aged 35-65 years old. The condition is caused by hyperglycemia, which leads to abnormal metabolism in the retinal vessel walls and damage to endothelial cells and pericytes. This damage causes increased vascular permeability, resulting in exudates seen on fundoscopy. Pericyte dysfunction predisposes to the formation of microaneurysms, while neovascularization is caused by the production of growth factors in response to retinal ischemia.
Patients with diabetic retinopathy are classified into those with non-proliferative diabetic retinopathy (NPDR), proliferative retinopathy (PDR), and maculopathy. NPDR is further classified into mild, moderate, and severe, depending on the presence of microaneurysms, blot hemorrhages, hard exudates, cotton wool spots, venous beading/looping, and intraretinal microvascular abnormalities. PDR is characterized by retinal neovascularization, which may lead to vitreous hemorrhage, and fibrous tissue forming anterior to the retinal disc. Maculopathy is based on location rather than severity and is more common in Type II DM.
Management of diabetic retinopathy involves optimizing glycaemic control, blood pressure, and hyperlipidemia, as well as regular review by ophthalmology. Treatment options include intravitreal vascular endothelial growth factor (VEGF) inhibitors for maculopathy, regular observation for non-proliferative retinopathy, and panretinal laser photocoagulation and intravitreal VEGF inhibitors for proliferative retinopathy. Vitreoretinal surgery may be necessary in cases of severe or vitreous hemorrhage.
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This question is part of the following fields:
- Ophthalmology
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Question 13
Correct
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A 68-year-old man comes to your clinic accompanied by his daughter. He reports having painless swelling in his fingers that has been persistent. When inquiring about his medical history, he denies any issues except for a nagging cough. During the examination of his hands, you observe an increased curvature of the nails and a loss of the angle between the nail and nail bed. Considering the potential diagnoses, what would be the most crucial step to take?
Your Answer: Urgent chest X-ray
Explanation:According to NICE guidelines for suspected lung cancers, individuals over the age of 40 with finger clubbing should undergo a chest X-ray. Given that this patient is 70 years old and has a persistent cough and finger clubbing, an urgent chest X-ray is necessary to investigate the possibility of lung cancer or mesothelioma. Pain relief medication such as oral analgesia or ibuprofen gel is not necessary as the patient is not experiencing any pain, which would be indicative of osteoarthritis. Reassurance is not appropriate in this case as finger clubbing in individuals over the age of 40 requires immediate investigation.
Referral Guidelines for Lung Cancer
Lung cancer is a serious condition that requires prompt diagnosis and treatment. The 2015 NICE cancer referral guidelines provide clear advice on when to refer patients for further assessment. According to these guidelines, patients should be referred using a suspected cancer pathway referral if they have chest x-ray findings that suggest lung cancer or if they are aged 40 and over with unexplained haemoptysis.
For patients aged 40 and over who have two or more unexplained symptoms, or who have ever smoked and have one or more unexplained symptoms, an urgent chest x-ray should be offered within two weeks to assess for lung cancer. These symptoms include cough, fatigue, shortness of breath, chest pain, weight loss, and appetite loss.
In addition, an urgent chest x-ray should be considered within two weeks for patients aged 40 and over who have persistent or recurrent chest infection, finger clubbing, supraclavicular lymphadenopathy or persistent cervical lymphadenopathy, chest signs consistent with lung cancer, or thrombocytosis.
Overall, these guidelines provide clear and specific criteria for when to refer patients for further assessment for lung cancer. By following these guidelines, healthcare professionals can ensure that patients receive timely and appropriate care.
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This question is part of the following fields:
- Musculoskeletal
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Question 14
Incorrect
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What statement regarding the pharmacology of trimethoprim is correct? Choose only one option from the list.
Your Answer: It may cause hepatic toxicity
Correct Answer: It can be combined with sulfamethoxazole for synergistic reasons
Explanation:Understanding Trimethoprim: Uses, Synergy, and Potential Side Effects
Trimethoprim is an antimicrobial drug that is commonly used to treat urinary tract infections and prevent Pneumocystis jirovecii pneumonia. It works by inhibiting the reduction of dihydrofolic acid to tetrahydrofolic acid, which is essential for bacterial DNA synthesis. While it is often combined with sulfamethoxazole for synergistic reasons, serum level monitoring is not required for dosage guidance. However, caution should be exercised in individuals with a predisposition to folate deficiency, as trimethoprim can lower folic acid levels and lead to megaloblastic anemia. While hepatic toxicity has not been reported, it is important to be aware of potential side effects when using this medication.
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This question is part of the following fields:
- Pharmacology/Therapeutics
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Question 15
Incorrect
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Which of the following neonatal complications is least frequently observed in pregnancies of women with diabetes?
Your Answer: Sacral agenesis
Correct Answer: Microsomia
Explanation:Macrosomia is more likely to occur in individuals with diabetes than microsomia.
Complications of Diabetes during Pregnancy
Diabetes during pregnancy can lead to various complications for both the mother and the baby. Maternal complications may include polyhydramnios, which occurs in 25% of cases and may be due to fetal polyuria. Preterm labor is also a common complication, occurring in 15% of cases and often associated with polyhydramnios.
Neonatal complications may include macrosomia, although diabetes can also cause small for gestational age babies. Hypoglycemia is another potential complication, which can occur due to beta cell hyperplasia. Respiratory distress syndrome may also occur, as surfactant production is delayed. Polycythemia, which leads to more neonatal jaundice, is also a possibility.
Malformation rates may increase 3-4 fold, with sacral agenesis, CNS and CVS malformations (hypertrophic cardiomyopathy) being some of the potential risks. Stillbirth is also a possibility. Hypomagnesemia and hypocalcemia may occur, and shoulder dystocia may cause Erb’s palsy.
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This question is part of the following fields:
- Paediatrics
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Question 16
Incorrect
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A 45-year-old woman presents to the Dermatology Clinic for regular follow-up of her psoriasis. This had previously been well controlled after phototherapy six months ago; however, she has recently deteriorated.
Her current treatment regime includes topical calcipotriol (Dovonex), topical coal tar ointment and topical hydromol ointment, in addition to amoxicillin for a recent respiratory infection. She is otherwise fit and well.
On examination, she has an erythematous rash covering much of her back, with widespread patches on her arms and legs. The rash is tender and warm, though she appears to be shivering. There are no oral lesions. Her pulse is 98 beats per minute, while her blood pressure (BP) is 95/50 mmHg and her temperature is 38.2 °C.
What is the most important next step in this woman's treatment?Your Answer:
Correct Answer: Arrange hospital admission
Explanation:Urgent Hospital Admission Required for Erythrodermic Psoriasis
Erythrodermic psoriasis is a severe dermatological emergency that requires urgent hospital admission. This is evident in a patient who presents with a drop in blood pressure, tachycardia, borderline pyrexia, and rigors. While the patient’s psoriasis needs more intensive management, it is not appropriate to manage erythroderma in the community.
The treatment for erythrodermic psoriasis includes supportive care, such as intravenous fluids, cool, wet dressings, and a systemic agent. The choice of a systemic agent depends on the patient and may involve rapid-acting therapies like ciclosporin or slower agents like methotrexate. However, it is important to note that starting any systemic agent requires investigations, including baseline blood tests and a viral screen, to ensure it is not contraindicated.
It is crucial to differentiate erythrodermic psoriasis from other dermatological emergencies like Stevens-Johnson syndrome/toxic epidermal necrolysis (TEN), which is a severe drug reaction associated with amoxicillin and anti-epileptic therapies. However, in this case, the patient’s history features a slow deterioration of pre-existing psoriasis, and the rash is not desquamating, and there are no oral lesions. Therefore, hospital admission is required for erythrodermic psoriasis.
It is essential to avoid repeating phototherapy in a patient with erythrodermic psoriasis as it can worsen the condition. In a well patient, phototherapy would not be reattempted six months after a poor response, and an alternate approach would most likely be sought.
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This question is part of the following fields:
- Dermatology
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Question 17
Incorrect
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A 7-year-old boy comes to the clinic with his father, complaining of a rash. The father reports that his son has been feeling unwell for approximately 6 days. Three days ago, he noticed some red rash behind his son's ears and it has now spread to his face and body. He also observed some white spots in his son's mouth before the rash appeared. During examination, there is a widespread maculopapular rash with regions of confluence.
What is the probable diagnosis?Your Answer:
Correct Answer: Measles
Explanation:The symptoms of measles include prodromal symptoms, Koplik spots, and a maculopapular rash that starts behind the ears. Kawasaki’s disease is identified by a fever lasting more than five days, along with conjunctivitis, cervical lymphadenopathy, a strawberry tongue, rash, and desquamation of digits. Chickenpox is characterized by the presence of vesicles, while scarlet fever is identified by a sandpaper rash and a strawberry tongue.
Measles: A Highly Infectious Viral Disease
Measles is a viral disease caused by an RNA paramyxovirus. It is one of the most infectious known viruses and is spread through aerosol transmission. The disease has an incubation period of 10-14 days and is infective from the prodromal phase until four days after the rash starts. Measles is now rare in developed countries due to immunization programs, but outbreaks can occur when vaccination rates drop, such as during the MMR controversy of the early 2000s.
The disease is characterized by a prodromal phase, which includes irritability, conjunctivitis, fever, and Koplik spots. The latter typically develop before the rash and are white spots on the buccal mucosa. The rash starts behind the ears and then spreads to the whole body, becoming a discrete maculopapular rash that may become blotchy and confluent. Desquamation may occur after a week, typically sparing the palms and soles. Diarrhea occurs in around 10% of patients.
Measles is mainly managed through supportive care, and admission may be considered in immunosuppressed or pregnant patients. The disease is notifiable, and public health should be informed. Complications of measles include otitis media, pneumonia (the most common cause of death), encephalitis (typically occurring 1-2 weeks following the onset of the illness), subacute sclerosing panencephalitis (very rare, may present 5-10 years following the illness), febrile convulsions, keratoconjunctivitis, corneal ulceration, diarrhea, increased incidence of appendicitis, and myocarditis.
If an unimmunized child comes into contact with measles, MMR should be offered within 72 hours. Vaccine-induced measles antibody develops more rapidly than that following natural infection.
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This question is part of the following fields:
- Paediatrics
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Question 18
Incorrect
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A 48-year-old man presents with a painful erythematous fluctuant swelling over the posterior elbow. There is no history of trauma. He is in good health and has full range of motion at the elbow.
What is the most probable diagnosis?Your Answer:
Correct Answer: Olecranon bursitis
Explanation:The patient’s symptoms suggest olecranon bursitis, which is inflammation of the bursa over the olecranon process. This can be caused by trauma or may be idiopathic. The patient reports a posterior swelling at the elbow, which is tender and fluctuant. Management includes NSAIDs, RICE, and a compression bandage. If septic bursitis is suspected, antibiotics may be necessary. Golfer’s elbow, gout, and septic joint are less likely diagnoses. Tennis elbow, which is more common than golfer’s elbow, is characterized by pain in the lateral elbow and tenderness over the lateral epicondyle, but is not associated with a posterior swelling.
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This question is part of the following fields:
- Musculoskeletal
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Question 19
Incorrect
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A 65-year-old patient is brought to the emergency department after falling off a ladder and hitting their head. The ambulance crew suspects an intracranial haemorrhage. Upon examination, the patient responds to verbal instruction by opening their eyes, but only makes incomprehensible groans. Painful stimulation causes abnormal flexing on the left side, while the right side has no motor response. What is the Glasgow Coma Scale (GCS) score for this patient?
Your Answer:
Correct Answer: 8
Explanation:Understanding the Glasgow Coma Scale for Adults
The Glasgow Coma Scale (GCS) is a tool used to assess the level of consciousness in adults who have suffered a brain injury or other neurological condition. It is based on three components: motor response, verbal response, and eye opening. Each component is scored on a scale from 1 to 6, with a higher score indicating a better level of consciousness.
The motor response component assesses the patient’s ability to move in response to stimuli. A score of 6 indicates that the patient is able to obey commands, while a score of 1 indicates no movement at all.
The verbal response component assesses the patient’s ability to communicate. A score of 5 indicates that the patient is fully oriented, while a score of 1 indicates no verbal response at all.
The eye opening component assesses the patient’s ability to open their eyes. A score of 4 indicates that the patient is able to open their eyes spontaneously, while a score of 1 indicates no eye opening at all.
The GCS score is expressed as a combination of the scores from each component, with the motor response score listed first, followed by the verbal response score, and then the eye opening score. For example, a GCS score of 13, M5 V4 E4 at 21:30 would indicate that the patient had a motor response score of 5, a verbal response score of 4, and an eye opening score of 4 at 9:30 PM.
Overall, the Glasgow Coma Scale is a useful tool for healthcare professionals to assess the level of consciousness in adults with neurological conditions.
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This question is part of the following fields:
- Neurology
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Question 20
Incorrect
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A 30-year-old woman with type 1 diabetes mellitus arrives at the emergency department complaining of blurry vision in her left eye. She reports her vision in that eye as 'hazy and faded' which started a few hours ago. She also experiences pain that worsens with eye movement. There are no visible signs of trauma or infection on her eyes, and her recent HbA1c and capillary blood glucose levels are normal. What clinical manifestation is linked to the suspected diagnosis?
Your Answer:
Correct Answer: Relative afferent pupillary defect (RAPD)
Explanation:Optic neuritis is a condition that can be caused by multiple sclerosis, diabetes, or syphilis. It is characterized by a decrease in visual acuity in one eye over a period of hours or days, as well as poor color discrimination and pain that worsens with eye movement. Other symptoms include a relative afferent pupillary defect and a central scotoma. The condition can be diagnosed through an MRI of the brain and orbits with gadolinium contrast. Treatment typically involves high-dose steroids, and recovery usually takes 4-6 weeks. If an MRI shows more than three white-matter lesions, the risk of developing multiple sclerosis within five years is approximately 50%.
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This question is part of the following fields:
- Ophthalmology
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Question 21
Incorrect
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A 35-year-old HIV positive man comes to your travel clinic seeking advice on vaccinations for his upcoming trip. He is currently on antiretroviral therapy and his most recent CD4 count is 180 cells/mm³. He has no other medical conditions and is feeling well.
Which vaccines should be avoided in this individual?Your Answer:
Correct Answer: Tuberculosis (BCG)
Explanation:Patients who are HIV positive should not receive live attenuated vaccines like BCG. Additionally, immunocompromised individuals should avoid other live attenuated vaccines such as yellow fever, oral polio, intranasal influenza, varicella, and measles, mumps, and rubella (MMR). This information is sourced from uptodate.
Types of Vaccines and Their Characteristics
Vaccines are essential in preventing the spread of infectious diseases. However, it is crucial to understand the different types of vaccines and their characteristics to ensure their safety and effectiveness. Live attenuated vaccines, such as BCG, MMR, and oral polio, may pose a risk to immunocompromised patients. In contrast, inactivated preparations, including rabies and hepatitis A, are safe for everyone. Toxoid vaccines, such as tetanus, diphtheria, and pertussis, use inactivated toxins to generate an immune response. Subunit and conjugate vaccines, such as pneumococcus, haemophilus, meningococcus, hepatitis B, and human papillomavirus, use only part of the pathogen or link bacterial polysaccharide outer coats to proteins to make them more immunogenic. Influenza vaccines come in different types, including whole inactivated virus, split virion, and sub-unit. Cholera vaccine contains inactivated strains of Vibrio cholerae and recombinant B-subunit of the cholera toxin. Hepatitis B vaccine contains HBsAg adsorbed onto aluminium hydroxide adjuvant and is prepared from yeast cells using recombinant DNA technology. Understanding the different types of vaccines and their characteristics is crucial in making informed decisions about vaccination.
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This question is part of the following fields:
- Infectious Diseases
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Question 22
Incorrect
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A nurse updates you on a 32-year-old woman who is 38 weeks pregnant. The patient's blood pressure reading is 155/90 mmHg, up from 152/85 mmHg two days ago. A 24-hour urine collection shows a urinary protein excretion of 0.7g / 24 hours. The patient was previously healthy before pregnancy. Following oral labetalol administration, what is the next step in managing this situation?
Your Answer:
Correct Answer: Plan delivery of the foetus within 48 hours
Explanation:Pregnant women who have mild or moderate gestational hypertension, are beyond 37 weeks of pregnancy, and exhibit pre-eclampsia symptoms, should be advised to deliver their baby within 24 to 48 hours as per the existing recommendations.
Hypertension during pregnancy is a common occurrence that requires careful management. In normal pregnancies, blood pressure tends to decrease in the first trimester and then gradually increase to pre-pregnancy levels by term. However, in cases of hypertension during pregnancy, the systolic blood pressure is usually above 140 mmHg or the diastolic blood pressure is above 90 mmHg. Additionally, an increase of more than 30 mmHg systolic or 15 mmHg diastolic from the initial readings may also indicate hypertension.
There are three categories of hypertension during pregnancy: pre-existing hypertension, pregnancy-induced hypertension (PIH), and pre-eclampsia. Pre-existing hypertension refers to a history of hypertension before pregnancy or elevated blood pressure before 20 weeks gestation. PIH occurs in the second half of pregnancy and resolves after birth. Pre-eclampsia is characterized by hypertension and proteinuria, and may also involve edema.
The management of hypertension during pregnancy involves the use of antihypertensive medications such as labetalol, nifedipine, and hydralazine. In cases of pre-existing hypertension, ACE inhibitors and angiotensin II receptor blockers should be stopped immediately and alternative medications should be prescribed. Women who are at high risk of developing pre-eclampsia should take aspirin from 12 weeks until the birth of the baby. It is important to carefully monitor blood pressure and proteinuria levels during pregnancy to ensure the health of both the mother and the baby.
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This question is part of the following fields:
- Reproductive Medicine
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Question 23
Incorrect
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You assess a neonate who is 2 hours old and was delivered via caesarean section. The mother had an elective caesarean section at 38-weeks due to an active herpes infection. During examination, the infant has a respiratory rate of 62 breaths per minute. A chest x-ray reveals hyperinflation and fluid in the horizontal fissure. What would be your management plan for this patient, considering the probable diagnosis?
Your Answer:
Correct Answer: Observation and supportive care
Explanation:Transient tachypnoea of the newborn can be identified through a chest x-ray which may reveal hyperinflation and fluid in the horizontal fissure. The appropriate management for this condition is observation and supportive care, including the administration of supplemental oxygen if necessary. Symptoms typically resolve on their own within a few days. The use of IV ceftriaxone, IV steroids, or urgent blood transfusion is not indicated in this case and therefore, incorrect.
Understanding Transient Tachypnoea of the Newborn
Transient tachypnoea of the newborn (TTN) is a common respiratory condition that affects newborns. It is caused by the delayed resorption of fluid in the lungs, which can lead to breathing difficulties. TTN is more common in babies born via caesarean section, as the fluid in their lungs may not be squeezed out during the birth process. A chest x-ray may show hyperinflation of the lungs and fluid in the horizontal fissure.
The management of TTN involves observation and supportive care. In some cases, supplementary oxygen may be required to maintain oxygen saturation levels. However, TTN usually resolves within 1-2 days. It is important for healthcare professionals to monitor newborns with TTN closely and provide appropriate care to ensure a full recovery. By understanding TTN and its management, healthcare professionals can provide the best possible care for newborns with this condition.
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This question is part of the following fields:
- Paediatrics
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Question 24
Incorrect
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You are setting up a leg ulcer clinic to be run by your practice nurse.
Which of the following is the best treatment for venous leg ulcers?
Your Answer:
Correct Answer: Compression bandaging
Explanation:Effective Management of Venous Leg Ulcers in Primary Care
Venous leg ulcers can be effectively managed in primary care through a combination of measures. Graduated compression is a key component of treatment, as it reduces venous reflux and ankle oedema while increasing venous blood flow. However, compression therapy may not be suitable for infected ulcers or those that are too tender. Pharmacotherapy and zinc paste are also not recommended for venous leg ulcers.
Intermittent pneumatic calf compression can be effective in overcoming venous hypertension, but bandaging regimens must be adjusted according to ankle circumference to achieve the optimal pressure of around 40 mm Hg. Hyperbaric oxygen is not the first-choice treatment.
In primary care, management of venous leg ulcers involves cleaning and dressing the ulcer, applying compression therapy appropriately, treating associated conditions such as pain, infection, oedema, and eczema, and providing lifestyle advice. Pentoxifylline may also be prescribed to aid ulcer healing. Follow-up and referral to specialist clinics may be necessary in some cases.
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This question is part of the following fields:
- Dermatology
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Question 25
Incorrect
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What is the most appropriate statement regarding GI bleeding caused by NSAID therapy? Choose only one option from the list.
Your Answer:
Correct Answer: It is due to depletion of mucosal prostaglandin E (PGE) levels
Explanation:Misconceptions about Non-Steroidal Anti-Inflammatory Drugs (NSAIDs)
Non-steroidal anti-inflammatory drugs (NSAIDs) are commonly used to relieve pain and inflammation. However, there are several misconceptions about their side effects. Here are some clarifications:
Clarifying Misconceptions about NSAIDs
Misconception 1: NSAIDs cause gastrointestinal (GI) bleeding by depleting mucosal prostaglandin E (PGE) levels.
Clarification: While it is true that NSAIDs can irritate the GI tract and reduce the levels of protective prostaglandins, not all NSAIDs have the same risk of causing GI bleeding. High-risk NSAIDs such as piroxicam have a higher prevalence of gastric side effects, while ibuprofen and diclofenac have lower rates. Additionally, GI bleeding can occur in patients without pre-existing peptic ulcers. Therefore, NSAIDs should be used at the lowest effective dose and for the shortest period possible.
Misconception 2: NSAIDs cause GI bleeding only in patients with pre-existing gastric and/or duodenal ulcers.
Clarification: While patients with pre-existing peptic ulcer disease are at higher risk of GI bleeding, NSAIDs can also cause GI bleeding in patients without ulcers. Therefore, caution should be exercised when prescribing NSAIDs to all patients.
Misconception 3: Severe dyspepsia is the only symptom of GI bleeding caused by NSAIDs.
Clarification: While dyspepsia is a common symptom of NSAID use, endoscopic evidence of peptic ulceration can be seen in up to 20% of asymptomatic patients taking NSAIDs. Therefore, regular monitoring and endoscopic evaluation may be necessary in patients taking NSAIDs.
Misconception 4: NSAIDs increase platelet adhesiveness.
Clarification: NSAIDs actually reduce platelet aggregation and adhesiveness, except for aspirin, which irreversibly inhibits COX-1 and is indicated for inhibition of platelet aggregation. However, aspirin use increases the risk of bleeding.
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This question is part of the following fields:
- Pharmacology/Therapeutics
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Question 26
Incorrect
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A 6-year-old girl is presented with a worsening of her asthma symptoms. Upon examination, she exhibits bilateral expiratory wheezing, but there are no indications of respiratory distress. Her respiratory rate is 24 breaths per minute, and her PEF is approximately 50% of normal. What is the best course of action regarding steroid treatment?
Your Answer:
Correct Answer: Oral prednisolone for 3 days
Explanation:According to the 2016 guidelines of the British Thoracic Society, children should be given a specific dose of steroids based on their age. For children under 2 years, the dose should be 10 mg of prednisolone, for those aged 2-5 years, it should be 20 mg, and for those over 5 years, it should be 30-40 mg. Children who are already taking maintenance steroid tablets should receive a maximum dose of 60 mg or 2 mg/kg of prednisolone. If a child vomits after taking the medication, the dose should be repeated, and if they are unable to retain the medication orally, intravenous steroids should be considered. The duration of treatment should be tailored to the number of days required for recovery, and a course of steroids exceeding 14 days does not require tapering.
Managing Acute Asthma Attacks in Children
When it comes to managing acute asthma attacks in children, it is important to assess the severity of the attack and take appropriate action. For children between the ages of 2 and 5, those with severe or life-threatening asthma should be immediately transferred to the hospital. For moderate attacks, children should have a SpO2 level above 92% and no clinical features of severe asthma. However, for severe attacks, children may have a SpO2 level below 92%, be too breathless to talk or feed, have a heart rate above 140/min, and use accessory neck muscles. For life-threatening attacks, children may have a SpO2 level below 92%, a silent chest, poor respiratory effort, agitation, altered consciousness, and cyanosis.
For children over the age of 5, it is recommended to attempt to measure PEF in all cases. For moderate attacks, children should have a SpO2 level above 92%, a PEF level above 50% best or predicted, and no clinical features of severe asthma. For severe attacks, children may have a SpO2 level below 92%, a PEF level between 33-50% best or predicted, and be unable to complete sentences in one breath or too breathless to talk or feed. For life-threatening attacks, children may have a SpO2 level below 92%, a PEF level below 33% best or predicted, a silent chest, poor respiratory effort, altered consciousness, and cyanosis.
For children with mild to moderate acute asthma, bronchodilator therapy should be given via a beta-2 agonist and spacer (or close-fitting mask for children under 3 years old). One puff should be given every 30-60 seconds up to a maximum of 10 puffs. If symptoms are not controlled, the beta-2 agonist should be repeated and the child should be referred to the hospital. Steroid therapy should also be given to all children with an asthma exacerbation for 3-5 days, with the usual prednisolone dose varying based on age and weight.
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This question is part of the following fields:
- Paediatrics
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Question 27
Incorrect
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A young woman tells you she has developed fears of getting lost in the crowd and has become very anxious about going to open public places. She also says that she had experienced panic attacks previously when she went to a crowded shopping mall. She is physically healthy and so far has no history of mental illness.
Which of the following is the most likely diagnosis?Your Answer:
Correct Answer: Agoraphobia
Explanation:Understanding Phobias and Dissociative Disorders
Phobias and dissociative disorders are two types of mental health conditions that can significantly impact a person’s daily life. Phobias are intense and irrational fears of specific objects or situations, while dissociative disorders involve a disconnection from reality as a coping mechanism.
Agoraphobia is a common and severe phobia that affects mostly women and involves a fear of open spaces and crowded places. Social phobia, on the other hand, is a fear of being scrutinized in public and tends to start in adolescence. Acrophobia is a specific phobia that involves a fear of heights.
Treatment for phobias often involves psychological interventions such as cognitive-behavioral therapy. Dissociative disorders, on the other hand, typically require more intensive therapy to address the underlying trauma that led to the dissociation.
It’s important to seek professional help if you or someone you know is struggling with a phobia or dissociative disorder. With the right treatment and support, it is possible to manage these conditions and improve overall quality of life.
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This question is part of the following fields:
- Psychiatry
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Question 28
Incorrect
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A mother brings in her 3-month old male baby to the pediatrician's office. She reports that for the past two weeks, the baby has been experiencing poor feeding, with intermittent rapid breathing, wheezing, and sweating. Additionally, the baby's weight has dropped off the initial centile. During the examination, the pediatrician discovers hepatomegaly.
What could be the probable reason for these symptoms?Your Answer:
Correct Answer: Congestive heart failure
Explanation:The neonate is displaying signs of heart failure, which may be caused by structural heart disease. Symptoms of heart failure in neonates include difficulty feeding, breathing problems, and an enlarged liver. Asthma is not typically diagnosed in this age group, and acute liver failure is rare and usually presents with growth issues and blood clotting problems. Viral wheezing is uncommon in neonates, and the poor feeding and weight loss suggest heart failure as the likely cause.
How Congenital Heart Disease Presents
Congenital heart disease can manifest in various ways. One of the earliest signs may be detected during the antenatal period when imaging of the heart is performed as part of the 18-20 week fetal anomaly scan. A murmur may also be detected during the routine newborn examination. Cyanosis, a bluish discoloration of the skin and mucous membranes, may also be present. In some cases, heart failure may occur, which can be characterized by poor feeding, shortness of breath, sweating, and hepatomegaly. It is important to be aware of these presentations in order to promptly diagnose and manage congenital heart disease.
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This question is part of the following fields:
- Paediatrics
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Question 29
Incorrect
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A 25-year-old woman presents to her GP with a 4-week history of dry cough and chest tightness. She was diagnosed with asthma 8-months ago and has been using a salbutamol inhaler as needed. However, she has noticed an increase in shortness of breath over the past month and has been using her inhaler up to 12 times per day.
During the examination, her vital signs are normal. Her peak expiratory flow rate is 290L/min (best 400 L/min).
What is the next course of action in managing this patient's asthma symptoms?Your Answer:
Correct Answer: Low-dose inhaled corticosteroid
Explanation:For an adult with asthma that is not controlled by a short-acting beta-agonist, the appropriate next step is to add a low-dose inhaled corticosteroid. This is in accordance with NICE guidelines. The addition of a combined inhaled corticosteroid and long-acting beta-agonist is not recommended until symptoms cannot be controlled with a low-dose inhaled corticosteroid and a short-acting beta-agonist, with or without a leukotriene receptor antagonist. Similarly, a leukotriene receptor antagonist or long-acting beta-agonist should not be introduced until symptoms are not controlled with a low-dose inhaled corticosteroid and a short-acting beta-agonist, with or without a leukotriene receptor antagonist.
The management of asthma in adults has been updated by NICE in 2017, following the 2016 BTS guidelines. One of the significant changes is in ‘step 3’, where patients on a SABA + ICS whose asthma is not well controlled should be offered a leukotriene receptor antagonist instead of a LABA. NICE does not follow the stepwise approach of the previous BTS guidelines, but to make the guidelines easier to follow, we have added our own steps. The steps range from newly-diagnosed asthma to SABA +/- LTRA + one of the following options, including increasing ICS to high-dose, a trial of an additional drug, or seeking advice from a healthcare professional with expertise in asthma. Maintenance and reliever therapy (MART) is a form of combined ICS and LABA treatment that is only available for ICS and LABA combinations in which the LABA has a fast-acting component. It should be noted that NICE does not recommend changing treatment in patients who have well-controlled asthma simply to adhere to the latest guidance. The definitions of what constitutes a low, moderate, or high-dose ICS have also changed, with <= 400 micrograms budesonide or equivalent being a low dose, 400 micrograms - 800 micrograms budesonide or equivalent being a moderate dose, and > 800 micrograms budesonide or equivalent being a high dose for adults.
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This question is part of the following fields:
- Respiratory Medicine
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Question 30
Incorrect
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A 76-year-old man comes to the emergency department complaining of severe abdominal pain. He reports not having had a bowel movement or passed gas in the past 48 hours. Upon further questioning, he reveals that he has experienced constipation and weight loss in recent weeks. After a CT scan, a mass is discovered in the hepatic flexure, leading the medical team to suspect a large bowel obstruction caused by cancer. What is the most suitable surgical treatment plan for this patient?
Your Answer:
Correct Answer: Right hemicolectomy
Explanation:The appropriate surgical procedure for a patient with caecal, ascending or proximal transverse colon cancer is a right hemicolectomy. This involves removing the cecum, ascending colon, and proximal third of the transverse colon. If the cancer is located at the hepatic flexure, an extended right hemicolectomy may be necessary. Hartmann’s procedure is reserved for emergencies such as bowel obstruction or perforation and involves complete resection of the rectum and sigmoid colon with the formation of an end colostomy. A high anterior resection is used for upper rectal tumors, while a left hemicolectomy is used for distal two-thirds of the transverse colon and descending colon tumors. A low anterior resection is used for low rectal tumors, but none of these procedures are appropriate for a patient with a mass in the hepatic flexure.
Colorectal cancer is typically diagnosed through CT scans and colonoscopies or CT colonography. Patients with tumors below the peritoneal reflection should also undergo MRI to evaluate their mesorectum. Once staging is complete, a treatment plan is formulated by a dedicated colorectal MDT meeting.
For colon cancer, surgery is the primary treatment option, with resectional surgery being the only cure. The procedure is tailored to the patient and tumor location, with lymphatic chains being resected based on arterial supply. Anastomosis is the preferred method of restoring continuity, but in some cases, an end stoma may be necessary. Chemotherapy is often offered to patients with risk factors for disease recurrence.
Rectal cancer management differs from colon cancer due to the rectum’s anatomical location. Tumors can be surgically resected with either an anterior resection or an abdomino-perineal excision of rectum (APER). A meticulous dissection of the mesorectal fat and lymph nodes is integral to the procedure. Neoadjuvant radiotherapy is often offered to patients prior to resectional surgery, and those with obstructing rectal cancer should have a defunctioning loop colostomy.
Segmental resections based on blood supply and lymphatic drainage are the primary operations for cancer. The type of resection and anastomosis depend on the site of cancer. In emergency situations where the bowel has perforated, an end colostomy is often safer. Left-sided resections are more risky, but ileo-colic anastomoses are relatively safe even in the emergency setting and do not need to be defunctioned.
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This question is part of the following fields:
- Gastroenterology/Nutrition
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