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Question 1
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A 32-year-old male with a history of eczema and asthma complains of rhinorrhoea and nasal congestion for the past six months. His asthma is currently well managed and he rarely uses his blue inhaler. He occasionally feels pressure in his sinuses. What is the first-line treatment option available?
Your Answer: Nasal irrigation with saline solution
Explanation:Chronic rhinosinusitis can be treated with nasal irrigation using saline solution as a first-line option. However, it is unlikely that symptoms will resolve without additional interventions such as smoking cessation, avoidance of allergens, and a 3-month course of a steroid nasal spray like fluticasone or mometasone. It is important to note that optimizing asthma control is also crucial in managing chronic rhinosinusitis, but there is no indication of poorly controlled asthma in this case. It is not recommended to initiate long-term antibiotics without consulting a specialist as there is limited evidence of their effectiveness in treating this condition.
Understanding Chronic Rhinosinusitis
Chronic rhinosinusitis is a common condition that affects approximately 1 in 10 people. It is characterized by inflammation of the paranasal sinuses and nasal passages that lasts for 12 weeks or longer. There are several factors that can predispose individuals to this condition, including atopy (such as hay fever or asthma), nasal obstruction (such as a deviated septum or nasal polyps), recent local infections (such as rhinitis or dental extractions), swimming or diving, and smoking.
Symptoms of chronic rhinosinusitis include facial pain, nasal discharge, nasal obstruction, and post-nasal drip. Facial pain is typically felt as pressure in the frontal area and worsens when bending forward. Nasal discharge is usually clear if the condition is caused by allergies or vasomotor issues, but thicker and purulent discharge may indicate a secondary infection. Nasal obstruction can lead to mouth breathing, while post-nasal drip can cause a chronic cough.
Management of chronic rhinosinusitis involves avoiding allergens, using intranasal corticosteroids, and nasal irrigation with saline solution. However, it is important to be aware of red flag symptoms, such as unilateral symptoms, persistent symptoms despite 3 months of treatment compliance, and epistaxis (nosebleeds). If any of these symptoms occur, it is important to seek medical attention promptly.
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This question is part of the following fields:
- ENT
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Question 2
Incorrect
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A 32-year-old woman attends her booking appointment with the community midwife. She is at 14 weeks gestation in her second pregnancy. She has no underlying medical conditions.
Which of the following haemodynamic changes is most likely to present in this patient?Your Answer: Grade 2/6 diastolic murmur at the mitral area
Correct Answer: A 10 mmHg drop in diastolic blood pressure (BP) during the second trimester
Explanation:Physiological Changes in Cardiovascular System During Pregnancy
During pregnancy, the cardiovascular system undergoes significant changes to accommodate the growing fetus. These changes include a drop in diastolic blood pressure by 10 mmHg during the second trimester, circulating blood volume increases by approximately 50%, leading to a dilutional ‘physiological anaemia’ and cardiac output increases most sharply throughout the first trimester.
During pregnancy, heart rate progressively increases until reaching a peak in the third trimester. The overall change in heart rate represents approximately a 20–25% increase from baseline. However, a grade 2/6 diastolic murmur at the mitral area and pulsus alternans are not typical findings in a healthy pregnancy. It is important for healthcare providers to be aware of these physiological changes to properly monitor and manage the health of pregnant individuals.
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This question is part of the following fields:
- Cardiovascular
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Question 3
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A 65-year-old man presents to your clinic with a chief complaint of progressive difficulty in swallowing over the past 4 months. Upon further inquiry, he reports a weight loss of approximately 2.5 kilograms, which he attributes to a decreased appetite. He denies any pain with swallowing or regurgitation of food. During the interview, you observe a change in his voice quality. What is the probable diagnosis?
Your Answer: Oesophageal carcinoma
Explanation:When a patient experiences progressive dysphagia along with weight loss, it is important to investigate for possible oesophageal carcinoma as this is a common characteristic. Laryngeal nerve damage can also cause hoarseness in patients with this type of cancer. Although achalasia may present with similar symptoms, patients typically have difficulty swallowing both solids and liquids equally and may experience intermittent regurgitation of food. On the other hand, patients with oesophageal spasm usually experience pain when swallowing.
Oesophageal Cancer: Types, Risk Factors, Features, Diagnosis, and Treatment
Oesophageal cancer used to be mostly squamous cell carcinoma, but adenocarcinoma is now becoming more common, especially in patients with a history of gastro-oesophageal reflux disease (GORD) or Barrett’s. Adenocarcinoma is usually located near the gastroesophageal junction, while squamous cell tumours are found in the upper two-thirds of the oesophagus.
Risk factors for adenocarcinoma include GORD, Barrett’s oesophagus, smoking, achalasia, and obesity. Squamous cell cancer is more common in the developing world and is associated with smoking, alcohol, achalasia, Plummer-Vinson syndrome, and diets rich in nitrosamines.
The most common presenting symptom for both types of oesophageal cancer is dysphagia, followed by anorexia and weight loss. Other possible features include odynophagia, hoarseness, melaena, vomiting, and cough.
Diagnosis is done through upper GI endoscopy with biopsy, endoscopic ultrasound for locoregional staging, CT scanning for initial staging, and FDG-PET CT for detecting occult metastases. Laparoscopy may also be performed to detect occult peritoneal disease.
Operable disease is best managed by surgical resection, with the most common procedure being an Ivor-Lewis type oesophagectomy. However, the biggest surgical challenge is anastomotic leak, which can result in mediastinitis. Adjuvant chemotherapy may also be used in many patients.
Overall, oesophageal cancer is a serious condition that requires prompt diagnosis and treatment. Understanding the types, risk factors, features, diagnosis, and treatment options can help patients and healthcare providers make informed decisions about managing this disease.
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This question is part of the following fields:
- Gastroenterology/Nutrition
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Question 4
Correct
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A 50-year-old woman presents to you with her husband. Her husband complains of frequently waking up in the middle of the night and experiencing difficulty in breathing. She also notes that he feels excessively tired during the day and often dozes off while reading the newspaper. You suspect moderate sleep apnoea and decide to refer him for further evaluation. The patient is curious about the treatment options available. What is the primary treatment for moderate sleep apnoea?
Your Answer: Continuous positive airway pressure (CPAP)
Explanation:Understanding Obstructive Sleep Apnoea/Hypopnoea Syndrome
Obstructive sleep apnoea/hypopnoea syndrome (OSAHS) is a condition where the upper airway becomes partially or completely blocked during sleep, leading to interrupted breathing and reduced oxygen levels in the body. There are several predisposing factors for OSAHS, including obesity, macroglossia, large tonsils, and Marfan’s syndrome. The condition is often characterized by excessive snoring and periods of apnoea, which can be reported by the patient’s partner.
OSAHS can have several consequences, including daytime somnolence, compensated respiratory acidosis, and hypertension. To assess sleepiness, healthcare professionals may use tools such as the Epworth Sleepiness Scale or the Multiple Sleep Latency Test. Diagnostic tests for OSAHS include sleep studies, ranging from monitoring pulse oximetry to full polysomnography.
Management of OSAHS typically involves weight loss and continuous positive airway pressure (CPAP) as the first line of treatment for moderate or severe cases. Intra-oral devices may be used if CPAP is not tolerated or for patients with mild OSAHS. It is important to inform the DVLA if OSAHS is causing excessive daytime sleepiness. While there is limited evidence to support the use of pharmacological agents, healthcare professionals may consider them in certain cases.
Overall, understanding OSAHS and its management is crucial for improving the quality of life for patients with this condition.
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This question is part of the following fields:
- Respiratory Medicine
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Question 5
Incorrect
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A 25-year-old woman presents to your clinic seeking the combined oral contraceptive pill (COCP). She has recently started dating someone new and wants to begin taking the COCP before becoming sexually active with him. She is currently on day 10 of her 28-day menstrual cycle. After taking a detailed medical history, you decide to prescribe Microgynon (COCP).
The patient requests to start taking the pill immediately and inquires about any additional precautions she should take.Your Answer: No extra precautions required
Correct Answer: Use condoms for 7 days
Explanation:If the COC is initiated on the first day of the menstrual cycle, it becomes effective immediately. However, if it is started on any other day, additional contraception such as condoms should be used for the first 7 days. The injection, implant, IUS, and POP require 7 days to become effective, while the IUD is effective immediately upon insertion.
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:
- Reproductive Medicine
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Question 6
Correct
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A 42-year-old woman presents to the Ear, Nose and Throat Clinic with a 4-month history of right-sided hearing loss. She reports occasional buzzing in her right ear and feeling unsteady. She has no significant medical history and denies any recent infections. On examination, Rinne's test is positive in both ears, with Weber's test lateralizing to her left ear. There is no evidence of nystagmus, and her coordination remains intact. Apart from an absent right-sided corneal reflex, the rest of her cranial-nerve examination is unremarkable. What is the most appropriate investigation to confirm the diagnosis?
Your Answer: Magnetic resonance imaging (MRI) of the cerebellopontine angle with contrast
Explanation:Diagnostic Tests for Acoustic Tumours: Importance of MRI with Contrast
Acoustic tumours require accurate diagnosis for effective treatment. The most definitive diagnostic test is gadolinium-enhanced magnetic resonance imaging (MRI) of the cerebellopontine angle. This test can detect tumours as small as 1-2 mm in diameter, while fine-cut computed tomography (CT) scanning may miss tumours as large as 1.5 cm even with intravenous contrast enhancement.
Audiometry is also important, but only 5% of patients with acoustic tumours will have a normal audiogram. If MRI is contraindicated, air-contrast cisternography can detect relatively small intracanalicular tumours with high sensitivity.
Fine-cut CT scanning of the internal auditory canal with contrast can rule out medium to large tumours, but cannot reliably detect tumours smaller than 1-1.5 cm. CT scanning without contrast can rule out medium-sized tumours, but is not reliable for detecting smaller tumours.
It is critical to use gadolinium contrast in MRI of the cerebellopontine angle, as non-enhanced MRI may miss small tumours. Therefore, MRI with contrast is the most important diagnostic test for acoustic tumours.
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This question is part of the following fields:
- Neurology
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Question 7
Correct
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A 12-year-old Nigerian girl is brought to the GP clinic by her mother. She has been experiencing headaches, fatigue, and body aches for the past week. She has also been complaining of a sore throat and difficulty swallowing. This morning, her mother noticed swollen glands on both sides of her neck. The mother asks if her daughter can still attend school.
What would be your advice to the mother?Your Answer: She should be kept off school for 5 days from the onset of swollen glands
Explanation:If a child develops swollen glands due to mumps, they should stay away from school for 5 days starting from the day the swelling began. As the child’s swollen glands started one day ago, they should not attend school for the next 5 days. Waiting for a month is not necessary, but the child should not return to school until the 5-day exclusion period is over, even if the swelling has not completely resolved. The option suggesting waiting until all swellings have resolved before returning to school is incorrect.
The Health Protection Agency has provided guidance on when children should be excluded from school due to infectious conditions. Some conditions, such as conjunctivitis, fifth disease, roseola, infectious mononucleosis, head lice, threadworms, and hand, foot and mouth, do not require exclusion. Scarlet fever requires exclusion for 24 hours after commencing antibiotics, while whooping cough requires exclusion for 2 days after commencing antibiotics or 21 days from onset of symptoms if no antibiotics are taken. Measles requires exclusion for 4 days from onset of rash, rubella for 5 days from onset of rash, and chickenpox until all lesions are crusted over. Mumps requires exclusion for 5 days from onset of swollen glands, while diarrhoea and vomiting require exclusion until symptoms have settled for 48 hours. Impetigo requires exclusion until lesions are crusted and healed, or for 48 hours after commencing antibiotic treatment, and scabies requires exclusion until treated. Influenza requires exclusion until the child has recovered. The official advice regarding school exclusion for chickenpox has varied, but the most recent guidance suggests that all lesions should be crusted over before children return to school.
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This question is part of the following fields:
- Paediatrics
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Question 8
Incorrect
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A 35-year-old woman comes back from a trip. During her final day overseas, she had lunch from an unlicensed street food vendor. After eight days of returning home, she encounters bloating, abdominal discomfort, and non-bloody diarrhea, and she observes that her stools are floating in the toilet bowl. The patient's symptoms persist for nine weeks. What is the probable pathogen responsible for the patient's symptoms?
Your Answer: Entamoeba histolytica
Correct Answer: Giardia
Explanation:Chronic Giardia infection can lead to malabsorption.
Giardia is a type of protozoan that can be transmitted through the ingestion of contaminated fecal matter. While giardiasis typically resolves within a few weeks, if the infection persists for more than six weeks, it is considered chronic. Chronic Giardia infection can cause malabsorption of various nutrients, including vitamin A, B12, iron, zinc, and lipids. This malabsorption can result in steatorrhea, which is characterized by greasy, foul-smelling stools that float in the toilet bowl.
It is important to note that other pathogens, such as Entamoeba histolytica, Escherichia coli, and Salmonella, do not commonly cause malabsorption. While they may cause diarrhea and other gastrointestinal symptoms, they do not typically result in the malabsorption of nutrients.
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:
- Gastroenterology/Nutrition
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Question 9
Correct
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A 6-year-old boy is brought to the Emergency Department by his mother with complaints of right iliac fossa pain for the past two days. He has no previous medical history except for a cough and sore throat in the last week. He has had a high fever for the past two days and has lost his appetite but denies any other symptoms.
On examination, his temperature is 38.9 °C, and his pulse is 130 beats per minute. Bilateral enlarged submandibular and cervical lymph nodes are palpable and slightly tender. Chest examination is clear, with transmitted sounds from the upper airways. Abdominal examination reveals marked tenderness in the right iliac fossa with no guarding.
Urine dipstick reveals 2+ of ketones and 1+ of protein.
Blood test results for his full blood count (FBC) are as follows:
Investigation Result Normal value
Haemoglobin (Hb) 145 g/l 135–175 g/l
White cell count (WCC) 14.3 × 109/ 4.0–11.0 × 109/l
Platelets (PLT) 425 × 109/l 150–400 × 109/l
What is the most likely clinical diagnosis for this 6-year-old boy?Your Answer: Mesenteric adenitis
Explanation:Possible Diagnoses for a Child with Right Iliac Fossa Pain and High Temperature
When a child presents with right iliac fossa pain and high temperature, several possible diagnoses should be considered. One of them is mesenteric adenitis, which is characterized by abdominal pain resulting from mesenteric lymphadenopathy and often accompanied by enlarged neck nodes and a recent history of viral upper respiratory tract infection. Appendicitis is another possibility, but it tends to present with a low-grade fever and peritoneal irritation that causes involuntary muscle spasm in the abdominal wall. Meckel’s diverticulitis, which is clinically indistinguishable from appendicitis, is an intra-operative or radiological diagnosis and can cause gastrointestinal bleeding, obstruction, inflammation, or umbilical discharge. Retroperitoneal appendix abscess is an uncommon type of infection that presents with fever, back pain, and abdominal pain, but it can also cause other symptoms such as gastrointestinal bleeding, poor wound healing, chest pain, general discomfort, urinary frequency, and haematuria. Finally, urinary tract infection (UTI) is unlikely if there are no nitrites or leukocytes on urine dipstick, but it can cause non-specific symptoms such as vomiting/diarrhoea, mild abdominal pain, dysuria, frequency, and enuresis, especially in infants.
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This question is part of the following fields:
- Paediatrics
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Question 10
Correct
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A 28-year-old female patient complains of symptoms that suggest coeliac disease. What is the primary test that should be employed for screening individuals with coeliac disease?
Your Answer: Tissue transglutaminase antibodies
Explanation:According to NICE, the initial serological test for coeliac disease should be tissue transglutaminase antibodies.
Investigating Coeliac Disease
Coeliac disease is a condition caused by sensitivity to gluten, which can lead to villous atrophy and malabsorption. It is often associated with other conditions such as dermatitis herpetiformis and autoimmune disorders. Diagnosis of coeliac disease is made through a combination of serology and endoscopic intestinal biopsy. The gold standard for diagnosis is the biopsy, which should be performed in all patients with suspected coeliac disease to confirm or exclude the diagnosis. The biopsy traditionally takes place in the duodenum, but jejunal biopsies are also sometimes performed. Findings supportive of coeliac disease include villous atrophy, crypt hyperplasia, an increase in intraepithelial lymphocytes, and lamina propria infiltration with lymphocytes. Serology tests for coeliac disease include tissue transglutaminase antibodies and endomyseal antibodies, while anti-gliadin antibodies are not recommended. Patients who are already on a gluten-free diet should reintroduce gluten for at least six weeks prior to testing. Rectal gluten challenge is not widely used. A gluten-free diet can reverse villous atrophy and immunology in patients with coeliac disease.
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This question is part of the following fields:
- Gastroenterology/Nutrition
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