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  • Question 1 - A 23-year-old male patient complains of fatigue and a persistent sore throat for...

    Incorrect

    • A 23-year-old male patient complains of fatigue and a persistent sore throat for the last two weeks. During the examination, his temperature is 37.8ºC, pulse rate is 78/min, and there is widespread cervical lymphadenopathy with palatal petechiae. What is the potential complication that this patient may face due to the likely diagnosis?

      Your Answer: Subacute sclerosing panencephalitis

      Correct Answer: Splenic rupture

      Explanation:

      It is recommended to refrain from participating in contact sports for a period of 4 weeks if diagnosed with glandular fever.

      Understanding Infectious Mononucleosis

      Infectious mononucleosis, also known as glandular fever, is a viral infection caused by the Epstein-Barr virus (EBV) in 90% of cases. It is most commonly seen in adolescents and young adults. The classic triad of symptoms includes sore throat, pyrexia, and lymphadenopathy, which are present in around 98% of patients. Other symptoms include malaise, anorexia, headache, palatal petechiae, splenomegaly, hepatitis, lymphocytosis, haemolytic anaemia, and a maculopapular rash. The symptoms typically resolve after 2-4 weeks.

      The diagnosis of infectious mononucleosis is confirmed through a heterophil antibody test (Monospot test) in the second week of the illness. Management is supportive and includes rest, drinking plenty of fluids, avoiding alcohol, and taking simple analgesia for any aches or pains. It is recommended to avoid playing contact sports for 4 weeks after having glandular fever to reduce the risk of splenic rupture.

      Interestingly, there is a correlation between EBV and socioeconomic groups. Lower socioeconomic groups have high rates of EBV seropositivity, having frequently acquired EBV in early childhood when the primary infection is often subclinical. However, higher socioeconomic groups show a higher incidence of infectious mononucleosis, as acquiring EBV in adolescence or early adulthood results in symptomatic disease.

    • This question is part of the following fields:

      • Infectious Diseases
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  • Question 2 - A 25-year-old G2P1 woman presents to her midwife at 12 weeks gestation. She...

    Incorrect

    • A 25-year-old G2P1 woman presents to her midwife at 12 weeks gestation. She has a history of well-controlled type 1 diabetes mellitus and a family history of pre-eclampsia. Her urine dipstick and blood pressure are both normal. Based on this information, what advice should be given regarding her risk of developing pre-eclampsia?

      Your Answer: She will not need to take aspirin during pregnancy

      Correct Answer: She should take aspirin from 12 weeks gestation until delivery

      Explanation:

      A woman with a moderate or high risk of pre-eclampsia, such as this patient who has a family history of pre-eclampsia and type 1 diabetes mellitus, should take aspirin 75-150mg daily from 12 weeks gestation until delivery to reduce the risk of developing pre-eclampsia.

      Pre-eclampsia is a condition that occurs during pregnancy and is characterized by high blood pressure, proteinuria, and edema. It can lead to complications such as eclampsia, neurological issues, fetal growth problems, liver involvement, and cardiac failure. Severe pre-eclampsia is marked by hypertension, proteinuria, headache, visual disturbances, and other symptoms. Risk factors for pre-eclampsia include hypertension in a previous pregnancy, chronic kidney disease, autoimmune disease, diabetes, chronic hypertension, first pregnancy, and age over 40. Aspirin may be recommended for women with high or moderate risk factors. Treatment involves emergency assessment, admission for observation, and medication such as labetalol, nifedipine, or hydralazine. Delivery of the baby is the most important step in management, with timing depending on the individual case.

    • This question is part of the following fields:

      • Reproductive Medicine
      41.6
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  • Question 3 - A 50-year-old man with end-stage renal failure is scheduled for a renal transplant...

    Incorrect

    • A 50-year-old man with end-stage renal failure is scheduled for a renal transplant and is concerned about the potential increased risk of cancer. Can you provide information on which type of cancer he may be most susceptible to after the transplant?

      Your Answer: Pancreatic cancer

      Correct Answer: Squamous cell carcinoma of the skin

      Explanation:

      After receiving a transplant, a significant number of patients develop cancer within 20 years. This is caused by the medication given to prevent rejection, which suppresses the immune system. Kidney transplant recipients are at a higher risk of developing skin cancer, particularly squamous cell carcinoma, as well as lymphoma and cervical cancer.

      Immunosuppression in Renal Transplant: Medications and Monitoring

      Renal transplant patients require immunosuppressive medications to prevent rejection of the transplanted kidney. The initial regime usually includes ciclosporin or tacrolimus with a monoclonal antibody. The maintenance regime involves the same medications with mycophenolate mofetil or sirolimus. Steroids may be added if the patient experiences more than one steroid-responsive acute rejection episode.

      Ciclosporin inhibits calcineurin, a phosphatase involved in T cell activation. Tacrolimus has a lower incidence of acute rejection compared to ciclosporin and causes less hypertension and hyperlipidaemia. However, it has a high incidence of impaired glucose tolerance and diabetes. Mycophenolate mofetil blocks purine synthesis by inhibiting IMPDH, which inhibits the proliferation of B and T cells. Sirolimus blocks T cell proliferation by blocking the IL-2 receptor, but it can cause hyperlipidaemia. Monoclonal antibodies, such as daclizumab and basiliximab, are selective inhibitors of the IL-2 receptor.

      Patients on long-term immunosuppression require regular monitoring for complications such as cardiovascular disease, renal failure, and malignancy. Tacrolimus and ciclosporin can cause hypertension, hyperglycaemia, and hyperlipidaemia, which can accelerate cardiovascular disease. Nephrotoxic effects of these medications, graft rejection, or recurrence of the original disease can cause renal failure. Patients should also be educated about minimizing sun exposure to reduce the risk of squamous cell carcinomas and basal cell carcinomas. Regular monitoring can help detect and manage these complications.

    • This question is part of the following fields:

      • Renal Medicine/Urology
      67.4
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  • Question 4 - A 35-year-old overweight man visits the clinic with concerns about abdominal discomfort he...

    Incorrect

    • A 35-year-old overweight man visits the clinic with concerns about abdominal discomfort he experienced over the weekend. He reports that the discomfort began in his upper abdomen shortly after eating a large pizza on Friday night. The discomfort then shifted to the left side of his abdomen. He also vomited a few times. Most of the symptoms subsided within 24 hours. During the examination, he is still slightly tender in the left upper quadrant and has no fever or jaundice.
      What is the most probable diagnosis?

      Your Answer: Acute viral hepatitis

      Correct Answer: Biliary colic

      Explanation:

      Biliary colic is a common symptom of gallstones, occurring in 1-4% of patients with choledocholithiasis. The pain is intense and dull, usually resolving within 30-90 minutes, and often occurs after consuming fatty meals. This matches the patient’s symptoms and risk factors. If left untreated, biliary colic can progress to acute cholecystitis, which presents with upper abdominal pain, nausea, vomiting, and fever. However, since the patient’s symptoms resolved within 24 hours, acute cholecystitis is unlikely. Acute viral hepatitis is also an unlikely diagnosis, as the patient has no known exposure to the viruses and her symptoms resolved too quickly. Acute pancreatitis presents with severe abdominal pain, nausea, vomiting, and fever, which does not match the patient’s symptoms. Ascending cholangitis is also unlikely, as the patient is afebrile and not jaundiced, and her symptoms resolved within 24 hours.

    • This question is part of the following fields:

      • Gastroenterology/Nutrition
      129.4
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  • Question 5 - A father brings his 5-year-old daughter to the clinic. Despite not getting the...

    Correct

    • A father brings his 5-year-old daughter to the clinic. Despite not getting the MMR vaccine during the recent scare, he now wants to know if it's still possible to have her immunised due to the current measles outbreak. What should be done in this situation?

      Your Answer: Give MMR with repeat dose in 3 months

      Explanation:

      According to the Green Book, it is recommended to have a 3-month gap between doses for optimal response rate. However, if the child is over 10 years old, a 1-month gap is sufficient. In case of an emergency, such as an outbreak at the child’s school, younger children can have a shorter gap of 1 month.

      The MMR Vaccine: Information on Contraindications and Adverse Effects

      The Measles, Mumps and Rubella (MMR) vaccine is given to children in the UK twice before they enter primary school. The first dose is administered at 12-15 months, while the second dose is given at 3-4 years old. This vaccine is part of the routine immunisation schedule.

      However, there are certain contraindications to the MMR vaccine. Children with severe immunosuppression, allergies to neomycin, or those who have received another live vaccine by injection within four weeks should not receive the MMR vaccine. Pregnant women should also avoid getting vaccinated for at least one month following the MMR vaccine. Additionally, if a child has undergone immunoglobulin therapy within the past three months, there may be no immune response to the measles vaccine if antibodies are present.

      While the MMR vaccine is generally safe, there are some adverse effects that may occur. After the first dose of the vaccine, some children may experience malaise, fever, and rash. These symptoms typically occur after 5-10 days and last for around 2-3 days. It is important to be aware of these potential side effects and to consult with a healthcare professional if any concerns arise.

    • This question is part of the following fields:

      • Paediatrics
      37.8
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  • Question 6 - A 43-year-old man, David, visits you after his 72-year-old father passed away due...

    Incorrect

    • A 43-year-old man, David, visits you after his 72-year-old father passed away due to a heart attack. David has a history of asthma, which he occasionally manages with his salbutamol inhaler, and was diagnosed with type 1 diabetes at the age of 20. His diabetes is well-controlled, and his last cholesterol test, conducted three months ago, was within the normal range. David has been reading about the connection between cholesterol and heart attacks in the news and is curious if he should take medication to lower his cholesterol levels.

      Which of the following options is the most appropriate?

      Your Answer: Repeat cholesterol in 5 years time

      Correct Answer: Start atorvastatin 20mg today

      Explanation:

      For primary prevention of cardiovascular disease, individuals with type 1 diabetes who do not have established risk factors should be prescribed atorvastatin 20mg if they are over 40 years old, have had diabetes for more than 10 years, have established nephropathy, or have other risk factors such as obesity and hypertension. As this patient has had type 1 diabetes for over 10 years, they should be offered statins.

      Statins are drugs that inhibit the action of an enzyme called HMG-CoA reductase, which is responsible for producing cholesterol in the liver. However, they can cause some adverse effects such as myopathy, which includes muscle pain, weakness, and damage, and liver impairment. Myopathy is more common in lipophilic statins than in hydrophilic ones. Statins may also increase the risk of intracerebral hemorrhage in patients who have had a stroke before. Therefore, they should be avoided in these patients. Statins should not be taken during pregnancy and should be stopped if the patient is taking macrolides.

      Statins are recommended for people with established cardiovascular disease, those with a 10-year cardiovascular risk of 10% or more, and patients with type 2 diabetes mellitus. Patients with type 1 diabetes mellitus who were diagnosed more than 10 years ago, are over 40 years old, or have established nephropathy should also take statins. It is recommended to take statins at night as this is when cholesterol synthesis takes place. Atorvastatin 20mg is recommended for primary prevention, and the dose should be increased if non-HDL has not reduced for 40% or more. Atorvastatin 80 mg is recommended for secondary prevention. The graphic shows the different types of statins available.

    • This question is part of the following fields:

      • Cardiovascular
      57.7
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  • Question 7 - A 35 year-old woman has been diagnosed with fibroids and has been attempting...

    Incorrect

    • A 35 year-old woman has been diagnosed with fibroids and has been attempting to conceive for 2 years. She has been undergoing evaluation at the sub-fertility clinic and all tests have come back normal except for the presence of three uterine fibroids, which are asymptomatic. Her partner's semen analysis showed no abnormalities.
      What are the most suitable treatment options in this scenario?

      Your Answer:

      Correct Answer: Myomectomy

      Explanation:

      If a woman with large fibroids is experiencing fertility issues, the most effective treatment option that also preserves her ability to conceive in the future is myomectomy. However, depending on the specifics of the procedure, the woman may need to consider delivery options, such as a caesarean section, due to the risk of uterine rupture.

      While GnRH agonists can shrink fibroids and make them easier to remove surgically, they also temporarily turn off the ovaries, inhibiting ovulation and making pregnancy impossible during treatment. Additionally, fibroids tend to regrow after treatment is stopped. However, when combined with myomectomy, GnRH agonists can be a suitable treatment option.

      Endometrial ablation, on the other hand, destroys the endometrial lining, making it impossible for an embryo to implant. Uterine artery embolisation is also not recommended for women trying to conceive, as it significantly reduces blood supply to the uterus, making it impossible for a fetus to implant and grow.

      Understanding Uterine Fibroids

      Uterine fibroids are non-cancerous growths that develop in the uterus. They are more common in black women and are thought to occur in around 20% of white women in their later reproductive years. Fibroids are usually asymptomatic, but they can cause menorrhagia, which can lead to iron-deficiency anaemia. Other symptoms include lower abdominal pain, bloating, and urinary symptoms. Fibroids may also cause subfertility.

      Diagnosis is usually made through transvaginal ultrasound. Asymptomatic fibroids do not require treatment, but periodic monitoring is recommended. Menorrhagia secondary to fibroids can be managed with various treatments, including the levonorgestrel intrauterine system, NSAIDs, tranexamic acid, and hormonal therapies.

      Medical treatment to shrink or remove fibroids may include GnRH agonists or ulipristal acetate, although the latter is not currently recommended due to concerns about liver toxicity. Surgical options include myomectomy, hysteroscopic endometrial ablation, hysterectomy, and uterine artery embolization.

      Fibroids generally regress after menopause, but complications such as subfertility and iron-deficiency anaemia can occur. Red degeneration, which is haemorrhage into the tumour, is a common complication during pregnancy.

    • This question is part of the following fields:

      • Reproductive Medicine
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  • Question 8 - A 12-year-old boy presents acutely with petechiae on his legs, severe abdominal pain,...

    Incorrect

    • A 12-year-old boy presents acutely with petechiae on his legs, severe abdominal pain, bloody faeces, haematuria and painful joint swelling. The haematology laboratory results are normal.
      Which of the following is the most likely diagnosis?

      Your Answer:

      Correct Answer: Henoch–Schönlein purpura

      Explanation:

      Common Pediatric Diseases: Symptoms and Management

      Henoch–Schönlein purpura (HSP), Acute lymphocytic leukaemia, Alport’s syndrome, and Juvenile rheumatoid arthritis (JRA) are some of the common pediatric diseases that require prompt diagnosis and management. HSP is an autoimmune hypersensitivity vasculitis that often affects children and is associated with IgA dominant immune complexes. ALL is a type of cancer that affects the blood and bone marrow, causing symptoms such as fatigue, fever, and joint pain. Alport’s syndrome is a hereditary nephritis that can lead to chronic kidney disease, hearing loss, and ocular abnormalities. JRA is characterized by swollen joints, fever, and joint pain. Prompt diagnosis and management are crucial in these diseases, which may require supportive treatment, pain relief, and monitoring for potential complications.

    • This question is part of the following fields:

      • Haematology/Oncology
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  • Question 9 - A 70-year-old woman was taken to hospital with a sudden-onset, mild, right hemiparesis...

    Incorrect

    • A 70-year-old woman was taken to hospital with a sudden-onset, mild, right hemiparesis and an inability to speak. A CT scan showed evidence of a recent left hemisphere infarction. She was found to be in atrial fibrillation and was anticoagulated. While in hospital she had a right-sided focal seizure and was treated with phenytoin. She made a good recovery over the next 6 weeks and was discharged home. When she was seen in the follow-up clinic 3 months later, anticoagulation was continued, but the phenytoin was stopped. Now, 2 months later, she has been re-admitted having developed a mild right hemiparesis and drowsiness over the previous 10 days. On further questioning, her husband remembers that she tripped over the rug in the lounge about 10 days earlier. Her INR (international normalised ratio) is 5.1.
      Which of the following is the most likely cause of her deterioration?
      Select the SINGLE most likely cause from the list below. Select ONE option only.

      Your Answer:

      Correct Answer: Left subdural haematoma

      Explanation:

      Distinguishing Left Subdural Haematoma from Other Causes of Deteriorating Neurological Function in a Patient on Warfarin

      Subdural haemorrhage (SDH) is a condition where blood accumulates in the subdural space around the brain, often as a result of trauma. It is more common in older patients and those on anticoagulants, such as warfarin. SDH typically presents with fluctuating conscious level, gradual progression of headaches, altered conscious level, and focal neurological deficits. It can be mistaken for dementia in older patients.

      In a patient on warfarin with a supratherapeutic INR, a minor head injury can lead to slowly progressive deterioration in neurological function over days or weeks, which is classic for SDH. Recurrent seizures are unlikely without another insult to the brain, and the clinical picture described does not fit with seizures. Further cardioembolic stroke is also unlikely, as warfarin at a therapeutic INR greatly reduces the risk of stroke. Concurrent lobar pneumonia could cause drowsiness and worsening of residual weakness, but focal neurology would be unusual. Left hemisphere intracerebral haemorrhage is a possibility, but symptoms would develop rapidly rather than gradually.

      Therefore, in a patient on warfarin with a history of head injury and slowly progressive deterioration in neurological function over days, left subdural haematoma is the most likely cause. Intercurrent infection could also cause deterioration, but not specifically of the right hemiparesis, unless the patient had made a less than complete recovery. Recurrent seizures are uncommon, but could cause deterioration if the patient was in partial status epilepticus.

    • This question is part of the following fields:

      • Neurology
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  • Question 10 - A 72-year-old male presents to the emergency department with complaints of new-onset pain...

    Incorrect

    • A 72-year-old male presents to the emergency department with complaints of new-onset pain in his left groin. Upon examination, a large, warm, non-reducible mass located inferolateral to the pubic tubercle is observed, accompanied by erythema of the overlying skin. The patient reports vomiting twice and passing stools with blood mixed in them once. He appears to be in pain and is sweating profusely. His medical history includes peptic ulcer disease, which is managed with omeprazole. What is the most likely diagnosis?

      Your Answer:

      Correct Answer: Strangulated femoral hernia

      Explanation:

      A femoral hernia can lead to the serious complication of strangulation. In this case, the patient has a non-reducible mass located below the pubic tubercle, which is typical of a femoral hernia. However, the accompanying symptoms of vomiting, bloody stools, and a toxic appearance suggest that the hernia has become strangulated, meaning that the blood supply to the herniated tissue has been compromised and may lead to tissue death.

      An incarcerated femoral hernia would also present as a non-reducible mass below the pubic tubercle, but without the symptoms of strangulation.

      In contrast, an incarcerated inguinal hernia would present as a non-reducible mass above and towards the middle of the pubic tubercle, and would not cause symptoms of strangulation.

      A perforated peptic ulcer would cause pain in the upper abdomen, syncope, and possibly vomiting blood, which is different from the patient’s symptoms.

      Similarly, a strangulated inguinal hernia would cause similar symptoms, but the mass would be located above and towards the middle of the pubic tubercle, rather than below it.

      Understanding Femoral Hernias

      Femoral hernias occur when a part of the bowel or other abdominal organs pass through the femoral canal, which is a potential space in the anterior thigh. This can result in a lump in the groin area that is mildly painful and typically non-reducible. Femoral hernias are less common than inguinal hernias, accounting for only 5% of abdominal hernias, and are more prevalent in women, especially those who have had multiple pregnancies. Diagnosis is usually clinical, but ultrasound may be used to confirm the presence of a femoral hernia and exclude other possible causes of a lump in the groin area.

      Complications of femoral hernias include incarceration, where the herniated tissue cannot be reduced, and strangulation, which is a surgical emergency. The risk of strangulation is higher with femoral hernias than with inguinal hernias and increases over time. Bowel obstruction and bowel ischaemia may also occur, leading to significant morbidity and mortality for the patient.

      Surgical repair is necessary for femoral hernias, and it can be done laparoscopically or via a laparotomy. Hernia support belts or trusses should not be used for femoral hernias due to the risk of strangulation. In an emergency situation, a laparotomy may be the only option. It is essential to distinguish femoral hernias from inguinal hernias, as they have different locations and require different management approaches.

    • This question is part of the following fields:

      • Gastroenterology/Nutrition
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  • Question 11 - A 28-year-old pregnant woman presents at 34 weeks gestation with a blood pressure...

    Incorrect

    • A 28-year-old pregnant woman presents at 34 weeks gestation with a blood pressure reading of 175/105 mmHg and 3+ proteinuria. She is started on magnesium sulphate and labetalol. The patient reports decreased foetal movements. Upon examination, a cardiotocogram reveals late decelerations and a foetal heart rate of 90 beats/minute. What is the next course of action in managing this situation?

      Your Answer:

      Correct Answer: Emergency caesarian section

      Explanation:

      Pre-eclampsia can be diagnosed based on the presence of high levels of protein in the urine and hypertension. To prevent the development of eclampsia, magnesium sulphate is administered, while labetalol is used to manage high blood pressure. If a cardiotocography (CTG) shows late decelerations and foetal bradycardia, this is a concerning sign and may necessitate an emergency caesarean section. Induction would not be recommended if the CTG is abnormal.

      Cardiotocography (CTG) is a medical procedure that measures pressure changes in the uterus using either internal or external pressure transducers. It is used to monitor the fetal heart rate, which normally ranges between 100-160 beats per minute. There are several features that can be observed during a CTG, including baseline bradycardia (heart rate below 100 beats per minute), which can be caused by increased fetal vagal tone or maternal beta-blocker use. Baseline tachycardia (heart rate above 160 beats per minute) can be caused by maternal pyrexia, chorioamnionitis, hypoxia, or prematurity. Loss of baseline variability (less than 5 beats per minute) can be caused by prematurity or hypoxia. Early deceleration, which is a decrease in heart rate that starts with the onset of a contraction and returns to normal after the contraction, is usually harmless and indicates head compression. Late deceleration, on the other hand, is a decrease in heart rate that lags behind the onset of a contraction and does not return to normal until after 30 seconds following the end of the contraction. This can indicate fetal distress, such as asphyxia or placental insufficiency. Variable decelerations, which are independent of contractions, may indicate cord compression.

    • This question is part of the following fields:

      • Reproductive Medicine
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  • Question 12 - A 16-year-old boy presents to you with complaints of excessive sweating in his...

    Incorrect

    • A 16-year-old boy presents to you with complaints of excessive sweating in his hands. He reports feeling embarrassed in social situations, particularly when he has to shake hands with someone. He is also concerned about how this may impact his upcoming A-level exams.

      Which of the following is the most appropriate initial management approach for this condition?

      Your Answer:

      Correct Answer: Aluminium chloride

      Explanation:

      Hyperhidrosis is not treated with beta blockers like propranolol or calcium channel blockers like nifedipine.

      Hyperhidrosis is a condition characterized by the excessive production of sweat. To manage this condition, there are several options available. The first-line treatment is the use of topical aluminium chloride preparations, although it may cause skin irritation as a side effect. Iontophoresis is another option that is particularly useful for patients with palmar, plantar, and axillary hyperhidrosis. Botulinum toxin is also licensed for axillary symptoms. Surgery, such as Endoscopic transthoracic sympathectomy, is another option, but patients should be informed of the risk of compensatory sweating. Overall, there are various management options available for hyperhidrosis, and patients should discuss with their healthcare provider to determine the best course of action.

    • This question is part of the following fields:

      • Dermatology
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  • Question 13 - A 49 year old man complains of experiencing dyspepsia on and off for...

    Incorrect

    • A 49 year old man complains of experiencing dyspepsia on and off for the past few months. He reports no signs of bleeding, dysphagia or weight loss, abstains from alcohol and is generally healthy. He is not taking any regular medication and has been using over-the-counter antacids which provide some relief. Physical examination reveals no abnormalities. What is your recommended plan for continued management?

      Your Answer:

      Correct Answer: Proton pump inhibitor

      Explanation:

      Management of Dyspepsia and Referral for Possible Cancer

      Dyspepsia is a common symptom that can be caused by various factors, including medication and lifestyle choices. However, it can also be a sign of underlying conditions such as stomach or oesophageal cancer. The 2015 NICE guidelines provide updated advice on when urgent referral for endoscopy is necessary. Patients with dysphagia or an upper abdominal mass consistent with stomach cancer should be referred urgently. Patients aged 55 years or older with weight loss and upper abdominal pain, reflux, or dyspepsia should also be referred urgently. Non-urgent referrals include patients with haematemesis or those with treatment-resistant dyspepsia, upper abdominal pain with low haemoglobin levels, or raised platelet count with other symptoms.

      For patients with undiagnosed dyspepsia, a step-wise approach is recommended. First, medications should be reviewed for possible causes. Lifestyle advice should also be given. If symptoms persist, a trial of full-dose proton pump inhibitor for one month or a ‘test and treat’ approach for H. pylori can be tried. If symptoms persist after either approach, the alternative should be attempted. Testing for H. pylori infection can be done using a carbon-13 urea breath test, stool antigen test, or laboratory-based serology. If symptoms resolve following test and treat, there is no need to check for H. pylori eradication. However, if repeat testing is required, a carbon-13 urea breath test should be used.

    • This question is part of the following fields:

      • Gastroenterology/Nutrition
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  • Question 14 - A 35-year-old woman presents to the Endocrinology Clinic with bruising, striae, acne and...

    Incorrect

    • A 35-year-old woman presents to the Endocrinology Clinic with bruising, striae, acne and hirsutism.
      On examination, the patient appears lethargic and depressed, with centripetal obesity and demonstrable proximal myopathy. Her blood pressure is 165/106 mmHg
      Investigations reveal the following:
      Investigation Result Normal values
      Sodium (Na+) 136 mmol/l 135–145 mmol/l
      Potassium (K+) 2.8 mmol/l 3.5–5.0 mmol/l
      Random glucose 8.2 mmol/l 3.9–7.1 mmol/l
      A low-dose dexamethasone test and a 24-hour urinary cortisol test are ordered.
      Which of the following is the most common cause of Cushing syndrome?

      Your Answer:

      Correct Answer: Iatrogenic

      Explanation:

      Understanding the Different Causes of Cushing Syndrome

      Cushing syndrome is a condition that occurs when the body is exposed to high levels of cortisol for an extended period. There are several different causes of Cushing syndrome, including iatrogenic, pituitary-dependent, ectopic ACTH secretion, primary adrenal disorder, and pseudo-Cushing’s syndrome.

      The most common cause of Cushing syndrome is iatrogenic, which is related to the use of corticosteroid medication. This risk is higher in people who take oral corticosteroids, but it can also affect those who misuse inhaled or topical corticosteroids.

      Pituitary-dependent Cushing’s disease is a much rarer cause of Cushing syndrome that arises from a pituitary tumour. Ectopic ACTH secretion is a very rare cause of Cushing syndrome that arises due to ACTH secretion from a carcinoid tumour.

      Primary adrenal disorder is an unusual cause of Cushing syndrome that arises from primary hypercortisolism. Finally, pseudo-Cushing’s syndrome describes hypercortisolism arising as a result of a separate condition, such as malnutrition or chronic alcoholism, resulting in the same phenotype and biochemical abnormalities of Cushing syndrome.

      Understanding the different causes of Cushing syndrome is important for proper diagnosis and treatment.

    • This question is part of the following fields:

      • Endocrinology/Metabolic Disease
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  • Question 15 - A 60-year-old man is discovered to have hypocalcaemia during routine blood tests for...

    Incorrect

    • A 60-year-old man is discovered to have hypocalcaemia during routine blood tests for his chronic kidney disease. He has a medical history of polycystic kidney disease, and it is anticipated that the low calcium result is a complication of this. What abnormalities would you anticipate in his other laboratory values?

      Your Answer:

      Correct Answer: ↑ serum phosphate, ↑ ALP and ↑ PTH

      Explanation:

      Chronic kidney disease can lead to secondary hyperparathyroidism, which is characterized by low serum calcium, high serum phosphate, high ALP, and high PTH levels. The kidneys are unable to activate vitamin D and excrete phosphate, resulting in calcium being used up in calcium phosphate. This leads to hypocalcemia, which triggers an increase in PTH levels to try and raise calcium levels. PTH stimulates osteoclast activity, causing a rise in ALP found in bone. Normal serum phosphate, normal ALP, and normal PTH levels are associated with osteoporosis or osteopetrosis, but in this case, the patient’s hypocalcemia and chronic kidney disease suggest other abnormal results. High serum phosphate, normal ALP, and low PTH levels are found in hypoparathyroidism, which is not consistent with chronic kidney disease. Low serum phosphate, normal ALP, and normal PTH levels suggest an isolated phosphate deficiency, which is also not consistent with the patient’s clinical picture.

      Lab Values for Bone Disorders

      When it comes to bone disorders, certain lab values can provide important information for diagnosis and treatment. In cases of osteoporosis, calcium, phosphate, alkaline phosphatase (ALP), and parathyroid hormone (PTH) levels are typically within normal ranges. However, in osteomalacia, there is a decrease in calcium and phosphate levels, an increase in ALP levels, and an increase in PTH levels.

      Primary hyperparathyroidism, which can lead to osteitis fibrosa cystica, is characterized by increased calcium and PTH levels, but decreased phosphate levels. Chronic kidney disease can also lead to secondary hyperparathyroidism, with decreased calcium levels and increased phosphate and PTH levels.

      Paget’s disease, which causes abnormal bone growth, typically shows normal calcium and phosphate levels, but an increase in ALP levels. Osteopetrosis, a rare genetic disorder that causes bones to become dense and brittle, typically shows normal lab values for calcium, phosphate, ALP, and PTH.

      Overall, understanding these lab values can help healthcare professionals diagnose and treat various bone disorders.

    • This question is part of the following fields:

      • Musculoskeletal
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  • Question 16 - A 45-year-old patient was referred with a 2-year history of persistent cough productive...

    Incorrect

    • A 45-year-old patient was referred with a 2-year history of persistent cough productive of yellowish sputum throughout the year. He has been treated by his GP for frequent chest infections.
      Which of the following is the most likely diagnosis?

      Your Answer:

      Correct Answer: Bronchiectasis

      Explanation:

      Bronchiectasis: Causes, Symptoms, and Treatment

      Bronchiectasis is a condition characterized by permanent and irreversible dilatations of the bronchial walls. It can be caused by various factors, including cystic fibrosis, immune system deficiencies, lung infections, foreign body aspiration, and smoking. Common symptoms of bronchiectasis include high sputum production, recurrent chest infections, and frequent but usually not severe haemoptysis. Patients may also experience postnasal drip, chronic sinusitis, and undue tiredness. A high-resolution computed tomography (HR-CT) scan is usually used to diagnose bronchiectasis. Treatment involves a multidisciplinary approach, including chest physiotherapy, patient education on airway-clearing techniques, antibiotic treatment during infective exacerbations, and bronchodilators in case of airflow obstruction. While treatment of the underlying cause may be necessary, it does not provide reversal of the existing bronchiectasis. Other conditions, such as sarcoidosis, fibrosing alveolitis, lung cancer, and asthma, are unlikely to produce the same clinical picture as bronchiectasis.

    • This question is part of the following fields:

      • Respiratory Medicine
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  • Question 17 - You are examining test results. The midstream urine specimen (MSU) of a 26-year-old...

    Incorrect

    • You are examining test results. The midstream urine specimen (MSU) of a 26-year-old woman who is 14 weeks pregnant indicates a urinary tract infection. During the discussion of the outcome with the patient, she reports experiencing dysuria and having 'foul-smelling urine.' What is the best course of action?

      Your Answer:

      Correct Answer: Nitrofurantoin for 7 days

      Explanation:

      As the woman is experiencing symptoms, she requires treatment with a pregnancy-safe antibiotic. Trimethoprim is not recommended for use during the first trimester of pregnancy, making nitrofurantoin the appropriate choice. According to NICE CKS, amoxicillin should not be used due to its high resistance levels.

      Urinary tract infections (UTIs) are common in adults and can affect different parts of the urinary tract. The management of UTIs depends on various factors such as the patient’s age, gender, and pregnancy status. For non-pregnant women, local antibiotic guidelines should be followed if available. Trimethoprim or nitrofurantoin for three days are recommended by NICE Clinical Knowledge Summaries. However, if the patient is aged over 65 years or has visible or non-visible haematuria, a urine culture should be sent. Pregnant women with UTIs should be treated with nitrofurantoin, amoxicillin, or cefalexin for seven days. Trimethoprim should be avoided during pregnancy as it is teratogenic in the first trimester. Asymptomatic bacteriuria in pregnant women should also be treated to prevent progression to acute pyelonephritis. Men with UTIs should be offered a seven-day course of trimethoprim or nitrofurantoin unless prostatitis is suspected. A urine culture should be sent before antibiotics are started. Catheterised patients should not be treated for asymptomatic bacteria, but if symptomatic, a seven-day course of antibiotics should be given. Acute pyelonephritis requires hospital admission and treatment with a broad-spectrum cephalosporin or quinolone for 10-14 days. Referral to urology is not routinely required for men who have had one uncomplicated lower UTI.

    • This question is part of the following fields:

      • Renal Medicine/Urology
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  • Question 18 - A 67-year-old woman comes to the clinic complaining of experiencing electric shock-like pains...

    Incorrect

    • A 67-year-old woman comes to the clinic complaining of experiencing electric shock-like pains on the right side of her face for the past two months. She reports having 10-20 episodes per day, each lasting for 30-60 seconds. She recently had a dental check-up, which was normal. Upon neurological examination, no abnormalities were found. What is the most appropriate initial treatment?

      Your Answer:

      Correct Answer: Carbamazepine

      Explanation:

      Carbamazepine is the first-line treatment for trigeminal neuralgia.

      Understanding Trigeminal Neuralgia

      Trigeminal neuralgia is a type of pain syndrome that is characterized by severe pain on one side of the face. While most cases are idiopathic, some may be caused by compression of the trigeminal roots due to tumors or vascular problems. According to the International Headache Society, trigeminal neuralgia is defined as a disorder that causes brief electric shock-like pains that are limited to one or more divisions of the trigeminal nerve. The pain is often triggered by light touch, such as washing, shaving, or brushing teeth, and can occur spontaneously. Certain areas of the face, such as the nasolabial fold or chin, may be more susceptible to pain. The pain may also remit for varying periods.

      Red flag symptoms and signs that suggest a serious underlying cause include sensory changes, ear problems, a history of skin or oral lesions that could spread perineurally, pain only in the ophthalmic division of the trigeminal nerve, optic neuritis, a family history of multiple sclerosis, and onset before the age of 40.

      The first-line treatment for trigeminal neuralgia is carbamazepine. If there is a failure to respond to treatment or atypical features are present, such as onset before the age of 50, referral to neurology is recommended. Understanding the symptoms and management of trigeminal neuralgia is important for proper diagnosis and treatment.

    • This question is part of the following fields:

      • Neurology
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  • Question 19 - A 25-year-old female complains of ankle pain after twisting it during a game...

    Incorrect

    • A 25-year-old female complains of ankle pain after twisting it during a game of basketball. What is the least significant factor to consider when determining if an x-ray is necessary?

      Your Answer:

      Correct Answer: Swelling immediately after the injury and now

      Explanation:

      Ottawa Rules for Ankle Injuries

      The Ottawa Rules provide a guideline for determining whether an ankle x-ray is necessary after an injury. These rules have a sensitivity approaching 100%, meaning they are highly accurate. An ankle x-ray is only required if there is pain in the malleolar zone and one of the following findings: bony tenderness at the lateral malleolar zone or medial malleolar zone, or inability to walk four weight-bearing steps immediately after the injury and in the emergency department.

      The lateral malleolar zone is from the tip of the lateral malleolus to include the lower 6 cm of the posterior border of the fibular, while the medial malleolar zone is from the tip of the medial malleolus to the lower 6 cm of the posterior border of the tibia. These rules help healthcare professionals determine whether an ankle x-ray is necessary, which can save time and resources. It is important to note that there are also Ottawa rules available for foot and knee injuries. By following these guidelines, healthcare professionals can provide efficient and effective care for ankle injuries.

    • This question is part of the following fields:

      • Musculoskeletal
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  • Question 20 - A 32-year-old man is referred to the department of gastroenterology for a further...

    Incorrect

    • A 32-year-old man is referred to the department of gastroenterology for a further opinion having developed constant periumbilical pain radiating to both arms. Over the past three years he has been seen by colleagues in neurology, cardiology, rheumatology and endocrinology with a variety of symptoms, including fatigue, neck pain, chest pain and joint pain. Despite intensive investigations, no cause for his symptoms has been identified.
      Which of the following is the most likely diagnosis?

      Your Answer:

      Correct Answer: Somatisation disorder

      Explanation:

      Understanding Somatoform Disorders: Exploring Possible Diagnoses for a Patient with Medically Unexplained Symptoms

      This patient presents with medically unexplained symptoms (MUS), which are collectively known as somatoform disorders. The chronicity and large number of diverse symptoms in this case suggest somatisation disorder, a condition that affects 5-10% of repeat attenders in specialist clinics. Somatisation disorder is more common in women than in men and tends to start in early adulthood. Treatment involves psychological interventions (e.g. CBT) and/or antidepressant medication, but patients are frequently reluctant to engage in these.

      Other possible diagnoses for MUS include conversion disorder, hypochondriasis, and undifferentiated somatoform disorder. Conversion disorder presents with neurological symptoms, usually some type of loss of function, while hypochondriasis is associated with a persistent preoccupation to have one or more serious and progressive physical illnesses. In hypochondriasis, the patient puts emphasis on the presence of one (or more) determinate illness and on having it diagnosed. In somatisation disorder, such as in this vignette, the emphasis is on the symptoms (for which the patients seeks a medical explanation), rather than on a specific diagnosis. Undifferentiated somatoform disorder is used when the MUS are multiple and persistent, but the diagnostic criteria for somatisation disorder cannot be fulfilled.

      Depression is an important co-morbidity in patients with somatoform disorders, but in this vignette, the combination of physical symptoms and the extensive and complex history of contact with primary and secondary services makes somatisation disorder the most likely diagnosis. It is particularly important to use a patient-centred, empathic interview style with patients with somatoform disorders to ensure they receive the appropriate care and support.

    • This question is part of the following fields:

      • Psychiatry
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  • Question 21 - A 39-year-old male patient comes to the clinic complaining of scrotal swelling and...

    Incorrect

    • A 39-year-old male patient comes to the clinic complaining of scrotal swelling and discomfort that has been going on for three months. Upon examination, there is swelling on one side of the scrotum that illuminates when light is shone on it. The swelling is soft and painless, and the testis cannot be fully felt due to the presence of fluid. What is the best next step to take?

      Your Answer:

      Correct Answer: Refer urgently for testicular ultrasound

      Explanation:

      An ultrasound is necessary for adult patients with a hydrocele to rule out any underlying causes, such as a tumor. Although the most common cause of a non-acute hydrocele is unknown, it is crucial to exclude malignancy first. Therefore, providing reassurance or reevaluating the patient at a later time would only be appropriate after a testicular ultrasound has ruled out cancer. Testicular biopsy should not be used to investigate suspected testicular cancer as it may spread the malignancy through seeding along the needle’s track. While a unilateral hydrocele may be an uncommon presentation of a renal carcinoma invading the renal vein, a CTAP would not be the initial investigation in this case. If malignancy is confirmed, CT may be useful in staging the malignancy.

      A hydrocele is a condition where fluid accumulates within the tunica vaginalis. There are two types of hydroceles: communicating and non-communicating. Communicating hydroceles occur when the processus vaginalis remains open, allowing peritoneal fluid to drain into the scrotum. This type of hydrocele is common in newborn males and usually resolves within a few months. Non-communicating hydroceles occur when there is excessive fluid production within the tunica vaginalis. Hydroceles can develop secondary to conditions such as epididymo-orchitis, testicular torsion, or testicular tumors.

      The main feature of a hydrocele is a soft, non-tender swelling of the hemi-scrotum that is usually located anterior to and below the testicle. The swelling is confined to the scrotum and can be transilluminated with a pen torch. If the hydrocele is large, the testis may be difficult to palpate. Diagnosis can be made clinically, but ultrasound is necessary if there is any doubt about the diagnosis or if the underlying testis cannot be palpated.

      Management of hydroceles depends on the severity of the presentation. Infantile hydroceles are generally repaired if they do not resolve spontaneously by the age of 1-2 years. In adults, a conservative approach may be taken, but further investigation, such as an ultrasound, is usually warranted to exclude any underlying cause, such as a tumor.

    • This question is part of the following fields:

      • Renal Medicine/Urology
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  • Question 22 - A 30-year-old man is diagnosed with Addison’s disease.
    What should be prescribed in combination...

    Incorrect

    • A 30-year-old man is diagnosed with Addison’s disease.
      What should be prescribed in combination with hydrocortisone to benefit him?

      Your Answer:

      Correct Answer: Fludrocortisone

      Explanation:

      Treatment Options for Addison’s Disease

      Addison’s disease is a condition in which the adrenal glands do not produce enough hormones. To manage this condition, patients are typically given replacement therapy with both glucocorticoid and mineralocorticoid medications. Fludrocortisone is a common mineralocorticoid medication used in this treatment. However, dexamethasone, aspirin, and both types of contraceptive pills have no role in the treatment of Addison’s disease. It is important for patients to work closely with their healthcare provider to determine the best treatment plan for their individual needs.

    • This question is part of the following fields:

      • Endocrinology/Metabolic Disease
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  • Question 23 - A 32-year-old man complains of left ear pain and hearing loss for the...

    Incorrect

    • A 32-year-old man complains of left ear pain and hearing loss for the past week. He is an avid swimmer. During examination, you observe pre-auricular lymph nodes on the left side. The ear is inflamed, red, and tender to touch. A small amount of yellow discharge is visible in the ear canal.
      What is the initial treatment of choice after obtaining swabs?

      Your Answer:

      Correct Answer: Topical antibiotic drops

      Explanation:

      Patients suffering from otitis media typically experience relief from symptoms within 4 days without the need for antibiotics. While antibiotics can help shorten the duration of symptoms, they come with the risk of side effects and drug resistance. Therefore, treatment is usually postponed unless symptoms persist, the patient is generally unwell, or symptoms affect both ears. In rare cases, ear syringing may be used as a secondary treatment to remove debris from the ear canal.

      Understanding Otitis Externa: Causes, Features, and Management

      Otitis externa is a common condition that often prompts patients to seek medical attention. It is characterized by ear pain, itch, and discharge, and is caused by various factors such as infection, seborrhoeic dermatitis, and contact dermatitis. Swimming is also a common trigger of otitis externa. Upon examination, the ear canal appears red, swollen, or eczematous.

      The recommended initial management of otitis externa involves the use of topical antibiotics or a combination of topical antibiotics with a steroid. However, if the tympanic membrane is perforated, aminoglycosides are traditionally not used. In cases where there is canal debris, removal may be necessary, while an ear wick may be inserted if the canal is extensively swollen. Second-line options include oral antibiotics, taking a swab inside the ear canal, and empirical use of an antifungal agent.

      It is important to note that if a patient fails to respond to topical antibiotics, referral to an ENT specialist may be necessary. Malignant otitis externa is a more serious condition that is more common in elderly diabetics. It involves the extension of infection into the bony ear canal and the soft tissues deep to the bony canal, and may require intravenous antibiotics.

      Overall, understanding the causes, features, and management of otitis externa is crucial in providing appropriate care and preventing complications.

    • This question is part of the following fields:

      • ENT
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  • Question 24 - You are conducting an 8-week examination on a baby with a prominent purplish...

    Incorrect

    • You are conducting an 8-week examination on a baby with a prominent purplish birthmark. The mother was informed that it may not disappear on its own and could be linked to other vascular issues. What is the probable diagnosis?

      Your Answer:

      Correct Answer: Port wine stain

      Explanation:

      Understanding Port Wine Stains

      Port wine stains are a type of birthmark that are characterized by their deep red or purple color. Unlike other vascular birthmarks, such as salmon patches and strawberry hemangiomas, port wine stains do not go away on their own and may even become more prominent over time. These birthmarks are typically unilateral, meaning they only appear on one side of the body.

      Fortunately, there are treatment options available for those who wish to reduce the appearance of port wine stains. Cosmetic camouflage can be used to cover up the birthmark, while laser therapy is another option that requires multiple sessions. It’s important to note that while these treatments can help reduce the appearance of port wine stains, they may not completely eliminate them. Understanding the nature of port wine stains and the available treatment options can help individuals make informed decisions about managing these birthmarks.

    • This question is part of the following fields:

      • Dermatology
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  • Question 25 - A 72-year-old male presents with weight loss and heat intolerance. He is taking...

    Incorrect

    • A 72-year-old male presents with weight loss and heat intolerance. He is taking multiple medications for atrial fibrillation, ischaemic heart disease and rheumatoid arthritis. Thyroid function tests are requested and the results are shown in the table below:
      Thyroid stimulating hormone (TSH) 0.2 mU/L
      Free T4 35 pmol/L
      What is the most likely cause of these findings?

      Your Answer:

      Correct Answer: Amiodarone

      Explanation:

      Amiodarone and Thyroid Dysfunction

      Amiodarone is a medication used to treat heart rhythm disorders. However, around 1 in 6 patients taking amiodarone develop thyroid dysfunction. This can manifest as either amiodarone-induced hypothyroidism (AIH) or amiodarone-induced thyrotoxicosis (AIT).

      The pathophysiology of AIH is thought to be due to the high iodine content of amiodarone causing a Wolff-Chaikoff effect. This is an autoregulatory phenomenon where thyroxine formation is inhibited due to high levels of circulating iodide. Despite this, amiodarone may be continued if desirable.

      On the other hand, AIT may be divided into two types: type 1 and type 2. Type 1 is caused by excess iodine-induced thyroid hormone synthesis, while type 2 is caused by amiodarone-related destructive thyroiditis. In patients with AIT, amiodarone should be stopped if possible.

      It is important for healthcare professionals to monitor patients taking amiodarone for any signs of thyroid dysfunction and adjust treatment accordingly.

    • This question is part of the following fields:

      • Pharmacology/Therapeutics
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  • Question 26 - A 7-year-old boy is brought to the Emergency Department in December because, for...

    Incorrect

    • A 7-year-old boy is brought to the Emergency Department in December because, for the past three days, he has had a high fever (up to 40 °C), vomiting and night sweats. For the last four weeks, he has been lethargic and has sweated through his pyjamas almost every night. He has had several nosebleeds in this time period, which his parents attributed to dry air from the heater. He has also been complaining that his back hurts.
      On examination, his temperature is 39.5 °C, his heart rate 140 beats per minute, his blood pressure is 80/60 mmHg and his respiratory rate 20 breaths per minute. He appears acutely ill, and you notice small petechiae on his abdomen.
      Which one of the following would an examination of peripheral lymphocytes most likely show?

      Your Answer:

      Correct Answer: A clonal population of immature cells expressing terminal deoxynucleotidyl transferase (TdT)

      Explanation:

      Acute lymphoblastic leukemia (ALL) is a common pediatric cancer that occurs due to the clonal expansion of immature T lymphocytes expressing terminal deoxynucleotidyl transferase (TdT). This protein is involved in gene rearrangements during T-cell receptor and immunoglobulin development and is no longer expressed after maturation. Symptoms include hepatosplenomegaly, lymphadenopathy, bruising, fatigue, joint and bone pain, bleeding, and infections. Diagnosis is made through bone marrow aspirate and biopsy, and treatment involves pegaspargase, which interferes with malignant cell growth. Hairy cell leukemia is characterized by lymphocytes with thin cytoplasmic projections and is mostly seen in middle-aged men. Chronic myeloid leukemia is caused by a chromosomal translocation leading to a constitutively active tyrosine kinase, treated with imatinib. Promyelocytic leukemia is an aggressive form of acute myeloid leukemia with a clonal population of immature cells containing Auer rods. Chronic lymphocytic leukemia is characterized by a clonal population of mature B cells, often seen in the elderly population and referred to as smudge cells on peripheral smear.

    • This question is part of the following fields:

      • Haematology/Oncology
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  • Question 27 - A 30-year-old female patient arrives at the Emergency Department with a two-day history...

    Incorrect

    • A 30-year-old female patient arrives at the Emergency Department with a two-day history of fever, headache, vomiting, and seizures. She has no significant medical history or allergies. Upon CT head examination, hypodensity of the left temporal lobe is identified, while a lumbar puncture reveals lymphocytes at 57 cells/µL (0-5 cells/µL), protein at 92 mg/100 mL (15-60 mg/100 mL), and glucose at 66 mg/100 mL (50-80 mg/100 mL). Serum blood glucose is normal. A brain MRI is subsequently performed, revealing prominent swelling and increased signal of the left temporal lobe and insular cortex. What is the urgent medication that must be initiated in this patient?

      Your Answer:

      Correct Answer: Aciclovir

      Explanation:

      In cases of encephalitis caused by herpes simplex virus (HSV), urgent administration of IV aciclovir (which is effective against HSV) is necessary. Amantadine, which is used to manage influenza, is not appropriate. Cefotaxime, which is often used for suspected meningococcal disease, is also not appropriate. Fluconazole, an anti-fungal medication, is not appropriate as encephalitis is unlikely to be caused by a fungal infection.

      Encephalitis: Symptoms, Causes, and Treatment

      Encephalitis is a condition characterized by inflammation of the brain. It presents with symptoms such as fever, headache, psychiatric symptoms, seizures, and vomiting. Focal features such as aphasia may also be present. Peripheral lesions like cold sores are not related to the presence of HSV encephalitis. HSV-1 is responsible for 95% of cases in adults, and it typically affects the temporal and inferior frontal lobes.

      To diagnose encephalitis, cerebrospinal fluid analysis is done, which shows lymphocytosis and elevated protein. PCR for HSV, VZV, and enteroviruses is also performed. Neuroimaging may reveal medial temporal and inferior frontal changes, such as petechial hemorrhages, but it is normal in one-third of patients. MRI is a better diagnostic tool. EEG may show lateralized periodic discharges at 2 Hz.

      The treatment for encephalitis involves intravenous aciclovir, which should be started in all cases of suspected encephalitis. Early diagnosis and treatment are crucial in preventing complications and improving outcomes.

    • This question is part of the following fields:

      • Neurology
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  • Question 28 - A 50-year-old woman presents to the ear, nose and throat clinic with a...

    Incorrect

    • A 50-year-old woman presents to the ear, nose and throat clinic with a 4-month history of left-sided hearing loss. She reports occasional ringing in her left ear and feeling unsteady. She has a medical history of well-controlled type 1 diabetes and denies any recent infections.

      During the examination, Rinne's test is positive in both ears, and Weber's test lateralizes to her right ear. There is no evidence of nystagmus, and her coordination is normal. Other than an absent left-sided corneal reflex, her cranial nerve examination is unremarkable.

      What is the most likely diagnosis?

      Your Answer:

      Correct Answer: Acoustic neuroma

      Explanation:

      If a patient presents with a loss of corneal reflex, an acoustic neuroma should be considered as a possible cause. This is a benign tumor that affects the vestibulocochlear nerve and can lead to symptoms such as vertigo, tinnitus, and unilateral sensorineural hearing loss. In some cases, the tumor can also invade the trigeminal nerve, resulting in an absent corneal reflex.

      Other conditions that may cause hearing loss and vertigo include cholesteatoma, labyrinthitis, and Meniere’s disease. However, in this case, the patient’s hearing tests indicate a sensorineural hearing loss, which makes cholesteatoma less likely. Labyrinthitis typically causes acute vertigo that can persist for several days, but it would not be the cause of the loss of the corneal reflex. Meniere’s disease is characterized by a triad of symptoms, including tinnitus, vertigo, and sensorineural hearing loss, but the vertigo tends to be shorter in duration and follow a relapsing and remitting course.

      Understanding Vestibular Schwannoma (Acoustic Neuroma)

      Vestibular schwannoma, also known as acoustic neuroma, is a type of brain tumor that accounts for 5% of intracranial tumors and 90% of cerebellopontine angle tumors. The condition is characterized by a combination of symptoms such as vertigo, hearing loss, tinnitus, and an absent corneal reflex. The affected cranial nerves can predict the features of the condition. For instance, cranial nerve VIII can cause vertigo, unilateral sensorineural hearing loss, and unilateral tinnitus. On the other hand, cranial nerve V can lead to an absent corneal reflex, while cranial nerve VII can cause facial palsy.

      Bilateral vestibular schwannomas are often seen in neurofibromatosis type 2. The diagnosis of vestibular schwannoma is made through an MRI of the cerebellopontine angle, and audiometry is also important since only 5% of patients have a normal audiogram.

      The management of vestibular schwannoma involves surgery, radiotherapy, or observation. The choice of treatment depends on the size and location of the tumor, the patient’s age and overall health, and the severity of symptoms. In conclusion, understanding vestibular schwannoma is crucial in managing the condition effectively.

    • This question is part of the following fields:

      • ENT
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  • Question 29 - You perform a home visit on an 80-year-old man, whose son is concerned...

    Incorrect

    • You perform a home visit on an 80-year-old man, whose son is concerned by increased confusion in the last 3 days. His past medical history includes mild cognitive impairment, ischaemic heart disease and diverticular disease.

      When you arrive, he reports feeling well and denies any recent health problems. However, you suspect he may not be giving an accurate account of his health as he appears slightly confused about his surroundings.

      During the examination, he complains of mild lower abdominal discomfort. On deep palpation, you feel a fullness in the left iliac fossa. All observations are within normal limits.

      What is the most likely cause of this man's confusion?

      Your Answer:

      Correct Answer: Constipation

      Explanation:

      In elderly patients, constipation is a frequent cause of heightened confusion and is the most probable reason for the symptoms described in this case. The patient’s confusion, slight abdominal discomfort, and palpable mass can all be attributed to constipation. While a colonic tumor could explain the discomfort and fullness on palpation, it is unlikely that its metastases would cause a sudden increase in confusion without a prior diagnosis. Constipation is a common presentation in elderly patients, and it is important to consider it as a potential cause of confusion. Mild cognitive impairment does not typically progress rapidly to dementia with disorientation to time and place. A urinary tract infection or acute diverticulitis would not account for the fullness in the left iliac fossa or the other symptoms described.

      Acute confusional state, also known as delirium or acute organic brain syndrome, is a condition that affects up to 30% of elderly patients admitted to hospital. It is more common in patients over the age of 65, those with a background of dementia, significant injury, frailty or multimorbidity, and those taking multiple medications. The condition is often triggered by a combination of factors, such as infection, metabolic imbalances, change of environment, and underlying medical conditions.

      The symptoms of acute confusional state can vary widely, but may include memory disturbances, agitation or withdrawal, disorientation, mood changes, visual hallucinations, disturbed sleep, and poor attention. Treatment involves identifying and addressing the underlying cause, modifying the patient’s environment, and using sedatives such as haloperidol or olanzapine. However, managing the condition can be challenging in patients with Parkinson’s disease, as antipsychotics can worsen Parkinsonian symptoms. In such cases, careful reduction of Parkinson medication may be helpful, and atypical antipsychotics such as quetiapine and clozapine may be preferred for urgent treatment.

      Overall, acute confusional state is a complex condition that requires careful management and individualized treatment. By addressing the underlying causes and providing appropriate sedation, healthcare professionals can help patients recover from this condition and improve their overall quality of life.

    • This question is part of the following fields:

      • Gastroenterology/Nutrition
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  • Question 30 - A 16-year-old girl comes to the clinic with symptoms of urticarial rash, angioedema,...

    Incorrect

    • A 16-year-old girl comes to the clinic with symptoms of urticarial rash, angioedema, and wheezing. According to her mother, she had recently attended her younger sister's party and had been assisting in inflating balloons. What could be the probable diagnosis?

      Your Answer:

      Correct Answer: Latex allergy

      Explanation:

      Latex allergy often presents as a Type I hypersensitivity reaction, which can lead to anaphylaxis. In such cases, it is crucial to administer adrenaline promptly and follow standard anaphylaxis management protocols.

      Classification of Hypersensitivity Reactions

      Hypersensitivity reactions are classified into four types according to the Gell and Coombs classification. Type I, also known as anaphylactic hypersensitivity, occurs when an antigen reacts with IgE bound to mast cells. This type of reaction is responsible for anaphylaxis and atopy, such as asthma, eczema, and hay fever. Type II, or cytotoxic hypersensitivity, happens when cell-bound IgG or IgM binds to an antigen on the cell surface. This type of reaction is associated with autoimmune hemolytic anemia, ITP, Goodpasture’s syndrome, and other conditions. Type III, or immune complex hypersensitivity, occurs when free antigen and antibody (IgG, IgA) combine to form immune complexes. This type of reaction is responsible for serum sickness, systemic lupus erythematosus, post-streptococcal glomerulonephritis, and extrinsic allergic alveolitis. Type IV, or delayed hypersensitivity, is T-cell mediated and is responsible for tuberculosis, graft versus host disease, allergic contact dermatitis, and other conditions.

      In recent times, a fifth category has been added to the classification of hypersensitivity reactions. Type V hypersensitivity occurs when antibodies recognize and bind to cell surface receptors, either stimulating them or blocking ligand binding. This type of reaction is associated with Graves’ disease and myasthenia gravis. Understanding the different types of hypersensitivity reactions is important in diagnosing and treating various conditions. Proper identification of the type of reaction can help healthcare professionals provide appropriate treatment and management strategies.

    • This question is part of the following fields:

      • Musculoskeletal
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SESSION STATS - PERFORMANCE PER SPECIALTY

Infectious Diseases (0/1) 0%
Reproductive Medicine (0/1) 0%
Renal Medicine/Urology (0/1) 0%
Gastroenterology/Nutrition (0/1) 0%
Paediatrics (1/1) 100%
Cardiovascular (0/1) 0%
Passmed