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  • Question 1 - What is the cause of scarlet fever? ...

    Incorrect

    • What is the cause of scarlet fever?

      Your Answer: Coxsackie A16

      Correct Answer: Group A haemolytic streptococci

      Explanation:

      Scarlet fever is a condition caused by erythrogenic toxins produced by Group A haemolytic streptococci, usually Streptococcus pyogenes. It is more prevalent in children aged 2-6 years, with the highest incidence at 4 years. The disease spreads through respiratory droplets or direct contact with nose and throat discharges, especially during sneezing and coughing. The incubation period is 2-4 days, and symptoms include fever, malaise, headache, nausea/vomiting, sore throat, ‘strawberry’ tongue, and a rash that appears first on the torso and spares the palms and soles. The rash has a rough ‘sandpaper’ texture and desquamination occurs later in the course of the illness, particularly around the fingers and toes.

      To diagnose scarlet fever, a throat swab is usually taken, but antibiotic treatment should be initiated immediately, rather than waiting for the results. Management involves administering oral penicillin V for ten days, while patients with a penicillin allergy should be given azithromycin. Children can return to school 24 hours after commencing antibiotics, and scarlet fever is a notifiable disease. Although usually a mild illness, scarlet fever may be complicated by otitis media, rheumatic fever, acute glomerulonephritis, or rare invasive complications such as bacteraemia, meningitis, or necrotizing fasciitis, which may present acutely with life-threatening illness.

    • This question is part of the following fields:

      • Paediatrics
      19.7
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  • Question 2 - What is the factor that is most likely to stimulate renin? ...

    Correct

    • What is the factor that is most likely to stimulate renin?

      Your Answer: Hypovolaemia

      Explanation:

      Hormones and their roles in regulating fluid balance

      Renin, ACTH, ANP, and ADH are hormones that play important roles in regulating fluid balance in the body. Renin is secreted by the kidneys in response to a decrease in blood volume, and it stimulates the renin-angiotensin-aldosterone system to increase extracellular volume and arterial vasoconstriction. ACTH, secreted by the pituitary gland, increases production and release of cortisol by the adrenal gland. ANP, secreted by heart myocytes, acts as a vasodilator to reduce water, sodium, and adipose loads on the circulatory system, counteracting the effects of the renin-angiotensin system. ADH, also known as vasopressin, increases water permeability in the kidneys and increases peripheral vascular resistance to increase arterial blood pressure. Understanding the roles of these hormones is crucial in maintaining proper fluid balance in the body.

    • This question is part of the following fields:

      • Renal Medicine/Urology
      44.7
      Seconds
  • Question 3 - A 55-year-old woman comes to see her general practitioner complaining of a progressively...

    Incorrect

    • A 55-year-old woman comes to see her general practitioner complaining of a progressively worsening erythematous rash on her nose, forehead, and cheeks accompanied by telangiectasia and papules for the past year. The rash is exacerbated by exposure to sunlight and consumption of hot and spicy foods. She has previously sought medical attention for this condition and has been treated with topical metronidazole, but her symptoms persist. She has no allergies and is otherwise healthy.
      What is the most suitable course of action for managing this patient's condition?

      Your Answer: Oral clarithromycin

      Correct Answer: Oral doxycycline

      Explanation:

      The patient has an erythematous rash on the nose, forehead, and cheeks with telangiectasia and papules, worsened by sun exposure and spicy food, suggesting a diagnosis of rosacea. The first-line treatment for mild to moderate cases is topical metronidazole, while severe or resistant cases require oral tetracycline. However, in this case, oral doxycycline should be given instead of metronidazole as it has been ineffective. Oral clarithromycin, erythromycin, and flucloxacillin are not appropriate treatments for rosacea.

      Understanding Rosacea: Symptoms and Management

      Rosacea, also known as acne rosacea, is a chronic skin condition that has no known cause. It typically affects the nose, cheeks, and forehead, and the first symptom is often flushing. Over time, telangiectasia (visible blood vessels) may appear, followed by persistent redness with papules and pustules. In some cases, rhinophyma (enlarged nose) may develop, and there may be ocular involvement, such as blepharitis. Sunlight can exacerbate symptoms.

      Mild cases of rosacea may be treated with topical metronidazole, while topical brimonidine gel may be used for patients with predominant flushing but limited telangiectasia. More severe cases may require systemic antibiotics like oxytetracycline. Patients are advised to apply high-factor sunscreen daily and use camouflage creams to conceal redness. Laser therapy may be appropriate for those with prominent telangiectasia, and patients with rhinophyma should be referred to a dermatologist.

      Overall, understanding the symptoms and management of rosacea can help individuals manage their condition and improve their quality of life.

    • This question is part of the following fields:

      • Dermatology
      24.5
      Seconds
  • Question 4 - A 25-year-old woman presents for her yearly asthma check-up. She reports experiencing her...

    Correct

    • A 25-year-old woman presents for her yearly asthma check-up. She reports experiencing her typical symptoms of chest tightness, wheezing, and shortness of breath about three times per week, usually at night. She also wakes up feeling wheezy once a week. At present, she only uses a salbutamol inhaler as needed, which provides her with good relief. The patient has no medical history, takes no other medications, and has no allergies. What is the appropriate management plan for this patient?

      Your Answer: Add a budesonide inhaler

      Explanation:

      According to NICE (2017) guidelines, patients with asthma should be prescribed a SABA as the first step of treatment. However, if a patient experiences symptoms three or more times per week or night waking, they should also be prescribed a low-dose ICS inhaler as the second step of treatment. This is also necessary for patients who have had an acute exacerbation requiring oral corticosteroids in the past two years. In this case, the patient’s symptoms are not well-controlled with a SABA alone, and she experiences frequent symptoms and night waking. Therefore, she requires a low-dose ICS inhaler, and the only option available is budesonide.

      Adding a salmeterol inhaler is not appropriate at this stage, as LABAs are only used as the fourth step of treatment if a patient is not controlled with a SABA, low-dose ICS, and a trial of LTRAs. Similarly, adding montelukast and a beclomethasone inhaler is not appropriate, as LTRAs are only added if a patient is still not controlled on a low-dose ICS and a SABA. However, it may be appropriate to trial beclomethasone without montelukast.

      Continuing with the current salbutamol-only treatment is not appropriate, as the patient’s asthma is poorly controlled, which increases the risk of morbidity and mortality. Regular salbutamol has no role in the management of asthma, as it does not improve outcomes and may even worsen them by downregulating beta receptors that are important for bronchodilation.

      The management of asthma in adults has been updated by NICE in 2017, following the 2016 BTS guidelines. One of the significant changes is in ‘step 3’, where patients on a SABA + ICS whose asthma is not well controlled should be offered a leukotriene receptor antagonist instead of a LABA. NICE does not follow the stepwise approach of the previous BTS guidelines, but to make the guidelines easier to follow, we have added our own steps. The steps range from newly-diagnosed asthma to SABA +/- LTRA + one of the following options, including increasing ICS to high-dose, a trial of an additional drug, or seeking advice from a healthcare professional with expertise in asthma. Maintenance and reliever therapy (MART) is a form of combined ICS and LABA treatment that is only available for ICS and LABA combinations in which the LABA has a fast-acting component. It should be noted that NICE does not recommend changing treatment in patients who have well-controlled asthma simply to adhere to the latest guidance. The definitions of what constitutes a low, moderate, or high-dose ICS have also changed, with <= 400 micrograms budesonide or equivalent being a low dose, 400 micrograms - 800 micrograms budesonide or equivalent being a moderate dose, and > 800 micrograms budesonide or equivalent being a high dose for adults.

    • This question is part of the following fields:

      • Respiratory Medicine
      43.9
      Seconds
  • Question 5 - A 35-year-old woman contacts the clinic to discuss her cervical screening outcome. She...

    Correct

    • A 35-year-old woman contacts the clinic to discuss her cervical screening outcome. She had a positive result for high-risk strains of human papillomavirus (hrHPV) during her last screening 18 months ago, but her cytology was normal. This time, her cytology is normal again, but she has tested positive for hrHPV once more. What is the best course of action to take next?

      Your Answer: Repeat in 12 months

      Explanation:

      Cervical cancer screening now includes testing all samples for hrHPV. If the result is positive, cytology is performed. If the cytology is normal, the test is repeated after 12 months.

      Upon repeat testing, if the result is now negative for hrHPV, the patient can resume normal recall. However, if the result is still positive for hrHPV and the cytology is normal, another repeat test should be done after 12 months. This applies to the patient in the given scenario.

      If the second repeat test at 24 months is negative for hrHPV, the patient can return to normal recall. However, if the result is positive for hrHPV, they should be referred for colposcopy.

      The cervical cancer screening program has evolved to include HPV testing, which allows for further risk stratification. A negative hrHPV result means a return to normal recall, while a positive result requires cytological examination. Abnormal cytology results lead to colposcopy, while normal cytology results require a repeat test at 12 months. Inadequate samples require a repeat within 3 months, and two consecutive inadequate samples lead to colposcopy. Treatment for CIN typically involves LLETZ or cryotherapy. Individuals who have been treated for CIN should be invited for a test of cure repeat cervical sample 6 months after treatment.

    • This question is part of the following fields:

      • Reproductive Medicine
      35.5
      Seconds
  • Question 6 - A 35-year-old woman presents to her General Practitioner complaining of fatigue and lack...

    Correct

    • A 35-year-old woman presents to her General Practitioner complaining of fatigue and lack of energy. She has a 1-year history of heavy menstrual bleeding with excessive blood loss. She is clinically anaemic.
      Investigations:
      Investigation Result Normal value
      Haemoglobin (Hb) 102 g/l 115–155 g/l
      Haematocrit 28% 36–47%
      Mean corpuscular volume (MCV) 70 fl 80–100 fl
      Mean cell haemoglobin (MCH) 25 pg 28–32 pg
      Mean corpuscular haemoglobin volume (MCHC) 300 g/l 320–350 g/d
      White cell count (WCC) 7.5 × 109/l 4.0–11.0× 109/l
      Platelets (PLT) 400× 109/l 150–400× 109/l
      What is the most appropriate dietary advice for this patient?
      Select the SINGLE advice option from the list below.

      Your Answer: She should increase her intake of vitamin C-rich and iron-rich food

      Explanation:

      To address her iron-deficiency anaemia, the patient should consume more foods rich in vitamin C and iron. Vitamin C can increase iron absorption by up to 10 times and maintain iron in its ferrous form. However, she should avoid breakfast cereals and white breads as they are often fortified with iron. Tea should also be avoided during meals or when taking iron supplements as it contains tannin, which reduces iron absorption. While a vegetarian diet can still provide non-haem iron, it is important to consume a variety of iron-rich plant-based foods. A gluten-free diet is only necessary if coeliac disease is present, which is unlikely in this case as the patient’s iron-deficiency anaemia is likely due to menorrhagia.

    • This question is part of the following fields:

      • Haematology/Oncology
      39.4
      Seconds
  • Question 7 - A 28-year-old woman comes in for a check-up. She has a history of...

    Correct

    • A 28-year-old woman comes in for a check-up. She has a history of perianal abscess, but no other significant medical issues. Over the past few months, she has visited the Emergency Department twice due to persistent abdominal pain. She has also experienced occasional episodes of bloody diarrhea. Blood tests reveal microcytic anemia and mild hypokalemia. Her albumin levels are low, but her liver function tests are normal. Barium imaging shows a small bowel stricture with evidence of mucosal ulceration, as well as normal-looking mucosa and skip pattern lesions. Based on these symptoms, what is the most likely diagnosis?

      Your Answer: Crohn's disease

      Explanation:

      Differential Diagnosis of Chronic Diarrhoea with Abdominal Pain and Weight Loss

      Chronic diarrhoea with abdominal pain and weight loss can be indicative of various gastrointestinal disorders. A thorough differential diagnosis is necessary to determine the underlying cause.

      Crohn’s Disease: This inflammatory bowel disease can affect any part of the gastrointestinal tract and is characterized by prolonged diarrhoea with abdominal pain, weight loss, and fatigue. Diarrhoea is usually not bloody, but if the colon is involved, patients may report diffuse abdominal pain accompanied by mucus, blood, and pus in the stool. Serologic tests such as ASCA and p-ANCA can help differentiate Crohn’s disease from other conditions.

      Ulcerative Colitis: Unlike Crohn’s disease, UC involves only the large bowel and is characterized by rectal bleeding, frequent stools, and mucus discharge from the rectum. Sigmoidoscopy can confirm the diagnosis.

      Small Bowel Lymphoma: MALTomas can occur in various gastrointestinal sites, but most patients have no physical findings.

      Coeliac Disease: This chronic disorder results in an inability to tolerate gliadin and is characterized by electrolyte imbalances, evidence of malnutrition, and anaemia. Diarrhoea is the most common symptom, with characteristic foul-smelling stools.

      Tropical Sprue: This syndrome is characterized by acute or chronic diarrhoea, weight loss, and nutrient malabsorption and occurs in residents or visitors to the tropics and subtropics. However, it is not suggestive in the absence of a history of foreign travel.

      In conclusion, a thorough evaluation of symptoms and diagnostic tests is necessary to differentiate between these gastrointestinal disorders and determine the appropriate treatment plan.

    • This question is part of the following fields:

      • Gastroenterology/Nutrition
      33.5
      Seconds
  • Question 8 - A 30-year-old female presents to her GP after a missed period and a...

    Correct

    • A 30-year-old female presents to her GP after a missed period and a positive pregnancy test. She is thrilled to be pregnant but is worried about her epilepsy medication. What medications are safe for epileptics during pregnancy?

      Your Answer: Lamotrigine

      Explanation:

      The use of anti-epileptic medication during pregnancy is a complex issue due to the risk of severe congenital defects. Therefore, it is important to provide good contraceptive advice and planning to women of childbearing age who are taking these medications. However, in cases where a woman becomes pregnant while on anti-epileptic medication, it is crucial to seek medical advice as soon as possible.

      According to recent guidelines from MBRRACE-UK and NICE, lamotrigine is the preferred medication for most women with epilepsy who are of childbearing age. In some cases, a dose increase may be necessary during pregnancy. Other medications such as phenytoin, phenobarbitone, and sodium valproate are known to have adverse effects on cognitive abilities and are generally avoided unless absolutely necessary.

      For pregnant women with epilepsy, lamotrigine, carbamazepine, and levetiracetam are considered to have the least impact on the developing fetus. However, it is important for all pregnant women with epilepsy to receive specialist care and guidance throughout their pregnancy.

      Pregnancy and breastfeeding can be a concern for women with epilepsy. It is generally recommended that women continue taking their medication during pregnancy, as the risks of uncontrolled seizures outweigh the potential risks to the fetus. However, it is important for women to take folic acid before pregnancy to reduce the risk of neural tube defects. The use of antiepileptic medication during pregnancy can increase the risk of congenital defects, but this risk is still relatively low. It is recommended to aim for monotherapy and there is no need to monitor drug levels. Sodium valproate is associated with neural tube defects, while carbamazepine is considered the least teratogenic of the older antiepileptics. Phenytoin is associated with cleft palate, and lamotrigine may require a dose increase during pregnancy. Breastfeeding is generally safe for mothers taking antiepileptics, except for barbiturates. Pregnant women taking phenytoin should be given vitamin K in the last month of pregnancy to prevent clotting disorders in the newborn.

      A warning has been issued about the use of sodium valproate during pregnancy and in women of childbearing age. New evidence suggests a significant risk of neurodevelopmental delay in children following maternal use of this medication. Therefore, it should only be used if clearly necessary and under specialist neurological or psychiatric advice. It is important for women with epilepsy to discuss their options with their healthcare provider and make informed decisions about their treatment during pregnancy and breastfeeding.

    • This question is part of the following fields:

      • Neurology
      9.9
      Seconds
  • Question 9 - A 25-year-old man presents to the clinic with persistent beliefs that his coworkers...

    Incorrect

    • A 25-year-old man presents to the clinic with persistent beliefs that his coworkers are plotting against him and trying to sabotage his work, despite reassurance and evidence to the contrary. He has had multiple heated arguments with his colleagues and after each one, he becomes aggressive and blames them for his outbursts. He sometimes feels like he cannot function without them, but also sometimes feels that they are out to get him. He has a history of a recent suicide attempt and has difficulties trusting his family as he feels they are part of the conspiracy. What is the most likely diagnosis?

      Your Answer: Paranoid personality disorder

      Correct Answer: Borderline personality disorder

      Explanation:

      The young man in question is likely suffering from borderline personality disorder (BPD), also known as emotionally unstable personality disorder (EUPD). This condition is characterized by unstable relationships, alternating between idealization and devaluation of others, recurrent self-harm, unstable self-image and self-esteem, suicidal behavior, difficulty controlling anger, and efforts to avoid abandonment. All of these traits are present in this patient, making BPD the most likely diagnosis.

      Narcissistic personality disorder is not a likely diagnosis for this patient, as it is characterized by a grandiose sense of self-importance, lack of empathy, and a sense of entitlement. These traits are not present in this patient, and his periods of devaluing her partner are temporary and not pervasive.

      Dependent personality disorder is also an unlikely diagnosis, as this condition is characterized by a pervasive need for others to make decisions for the patient and constant reassurance. While the patient has felt that he cannot live without his partner in the past, his labile mood and alternating view of his partner make this diagnosis less likely.

      Paranoid personality disorder is also an unlikely diagnosis, as patients with this condition tend to be reluctant to confide in others and have an unforgiving attitude when insulted or questioned. The patient in question does not exhibit these traits, and his difficulty with trusting friends is likely due to his belief that he is undeserving of them.

      Personality disorders are a set of personality traits that are maladaptive and interfere with normal functioning in life. It is estimated that around 1 in 20 people have a personality disorder, which are typically categorized into three clusters: Cluster A, which includes Odd or Eccentric disorders such as Paranoid, Schizoid, and Schizotypal; Cluster B, which includes Dramatic, Emotional, or Erratic disorders such as Antisocial, Borderline (Emotionally Unstable), Histrionic, and Narcissistic; and Cluster C, which includes Anxious and Fearful disorders such as Obsessive-Compulsive, Avoidant, and Dependent.

      Paranoid individuals exhibit hypersensitivity and an unforgiving attitude when insulted, a reluctance to confide in others, and a preoccupation with conspirational beliefs and hidden meanings. Schizoid individuals show indifference to praise and criticism, a preference for solitary activities, and emotional coldness. Schizotypal individuals exhibit odd beliefs and magical thinking, unusual perceptual disturbances, and inappropriate affect. Antisocial individuals fail to conform to social norms, deceive others, and exhibit impulsiveness, irritability, and aggressiveness. Borderline individuals exhibit unstable interpersonal relationships, impulsivity, and affective instability. Histrionic individuals exhibit inappropriate sexual seductiveness, a need to be the center of attention, and self-dramatization. Narcissistic individuals exhibit a grandiose sense of self-importance, lack of empathy, and excessive need for admiration. Obsessive-compulsive individuals are occupied with details, rules, and organization to the point of hampering completion of tasks. Avoidant individuals avoid interpersonal contact due to fears of criticism or rejection, while dependent individuals have difficulty making decisions without excessive reassurance from others.

      Personality disorders are difficult to treat, but a number of approaches have been shown to help patients, including psychological therapies such as dialectical behavior therapy and treatment of any coexisting psychiatric conditions.

    • This question is part of the following fields:

      • Psychiatry
      27.5
      Seconds
  • Question 10 - An ambulance brings a 70-year-old man to the emergency department with suspected stroke....

    Incorrect

    • An ambulance brings a 70-year-old man to the emergency department with suspected stroke. Upon examination, the man's speech is non-fluent, but his comprehension is intact. He experiences difficulty repeating a phrase. What is the most probable location of the lesion?

      Your Answer: Temporal lobe

      Correct Answer: Frontal lobe

      Explanation:

      The patient in the scenario has non-fluent speech, normal comprehension, and impaired repetition, which is indicative of Broca’s dysphasia. This type of speech abnormality is associated with a lesion in the frontal lobe affecting Broca’s area. When responding to a conversation, the signal travels from the ear to Wernicke’s area for comprehension, then along the arcuate fasciculus to Broca’s area for speech coordination. A lesion in the cerebellum, occipital lobe, parietal lobe, or temporal lobe would not be associated with Broca’s dysphasia.

      Understanding the Different Types of Aphasia

      Aphasia is a language disorder that affects a person’s ability to communicate effectively. There are different types of aphasia, each with its own set of symptoms and causes. Wernicke’s aphasia is caused by a lesion in the superior temporal gyrus, which is responsible for forming speech before sending it to Broca’s area. This type of aphasia results in sentences that make no sense, word substitution, and neologisms, but speech remains fluent. On the other hand, Broca’s aphasia is caused by a lesion in the inferior frontal gyrus, resulting in non-fluent, laboured, and halting speech. Repetition is impaired, but comprehension is normal.

      Conduction aphasia is caused by a stroke affecting the arcuate fasiculus, the connection between Wernicke’s and Broca’s area. Speech is fluent, but repetition is poor, and the person is aware of the errors they are making. Comprehension is normal. Global aphasia is the most severe type, affecting all three areas and resulting in severe expressive and receptive aphasia. However, the person may still be able to communicate using gestures.

      Understanding the different types of aphasia is crucial in providing appropriate treatment and support for individuals with this language disorder. It is important to note that dysarthria is different from aphasia and refers to a motor speech disorder.

    • This question is part of the following fields:

      • Neurology
      39
      Seconds
  • Question 11 - A 36-year-old woman visits her doctor complaining of fatigue and itchy skin. During...

    Correct

    • A 36-year-old woman visits her doctor complaining of fatigue and itchy skin. During the examination, the doctor notices yellowing of the eyes and an enlarged liver. Blood tests reveal the presence of anti-mitochondrial antibodies (AMAs).

      What is the most probable diagnosis? Choose ONE answer from the options below.

      Your Answer: Primary biliary cholangitis

      Explanation:

      Primary biliary cholangitis (PBC) is a chronic liver disease that primarily affects middle-aged women. It is believed to be an autoimmune disorder that causes progressive cholestasis and can lead to end-stage liver disease. Symptoms include fatigue, pruritus, and right upper quadrant discomfort. Laboratory tests typically show elevated levels of alkaline phosphatase, g-glutamyl transpeptidase, and immunoglobulins, as well as the presence of antimitochondrial antibodies. Treatment involves the use of ursodeoxycholic acid to slow disease progression. Autoimmune hepatitis, diffuse systemic sclerosis, primary sclerosing cholangitis, and systemic lupus erythematosus are other potential differential diagnoses.

    • This question is part of the following fields:

      • Gastroenterology/Nutrition
      17.7
      Seconds
  • Question 12 - A 28-year-old female patient complains of symptoms that suggest coeliac disease. What is...

    Correct

    • 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.

    • This question is part of the following fields:

      • Gastroenterology/Nutrition
      10.6
      Seconds
  • Question 13 - A 27-year-old woman comes to the clinic complaining of dysuria and frequency, four...

    Correct

    • A 27-year-old woman comes to the clinic complaining of dysuria and frequency, four weeks after giving birth. She exclusively breastfeeds her child and had an uneventful antenatal period and delivery. On examination, her abdomen appears normal and she has no fever. A urine dipstick reveals positive results for blood, protein, leucocytes, and nitrites. What is the best course of action for management?

      Your Answer: Trimethoprim

      Explanation:

      Breastfeeding has some contraindications that are important to know, especially when it comes to drugs. Antibiotics like penicillins, cephalosporins, and trimethoprim are safe for breastfeeding mothers, as are endocrine drugs like glucocorticoids (in low doses) and levothyroxine. Epilepsy drugs like sodium valproate and carbamazepine, asthma drugs like salbutamol and theophyllines, and hypertension drugs like beta-blockers and hydralazine are also safe. Anticoagulants like warfarin and heparin, as well as digoxin, are also safe. However, some drugs should be avoided, such as antibiotics like ciprofloxacin, tetracycline, chloramphenicol, and sulphonamides, psychiatric drugs like lithium and benzodiazepines, aspirin, carbimazole, methotrexate, sulfonylureas, cytotoxic drugs, and amiodarone. Other contraindications include galactosaemia and viral infections, although the latter is controversial in the developing world due to the increased risk of infant mortality and morbidity associated with bottle feeding.

    • This question is part of the following fields:

      • Renal Medicine/Urology
      15.7
      Seconds
  • Question 14 - An older woman with advanced breast cancer has been discharged from the hospital...

    Incorrect

    • An older woman with advanced breast cancer has been discharged from the hospital for palliative care at home. She was prescribed oral morphine at a dose of 10mg four times a day to manage her pain from bony metastases. This dosage was effective in controlling her pain.

      However, the patient's condition has worsened, and she is now experiencing difficulty swallowing, making it impossible to take the medication orally. The GP has recommended converting the morphine to a subcutaneous injection, which will be administered by the district nurses.

      What is the appropriate subcutaneous morphine dose for this patient?

      Your Answer: 20mg four times daily

      Correct Answer: 5mg four times daily

      Explanation:

      To convert from oral to subcutaneous morphine, divide the oral dose by two. In this case, the recommended subcutaneous morphine dose is 5mg four times daily, which is equivalent to 10mg of oral morphine four times daily. As the patient’s pain is currently well controlled, there is no need to adjust the analgesia dose.

      Palliative care prescribing for pain is guided by NICE and SIGN guidelines. NICE recommends starting treatment with regular oral modified-release or immediate-release morphine, with immediate-release morphine for breakthrough pain. Laxatives should be prescribed for all patients initiating strong opioids, and antiemetics should be offered if nausea persists. Drowsiness is usually transient, but if it persists, the dose should be adjusted. SIGN advises that the breakthrough dose of morphine is one-sixth the daily dose, and all patients receiving opioids should be prescribed a laxative. Opioids should be used with caution in patients with chronic kidney disease, and oxycodone is preferred to morphine in patients with mild-moderate renal impairment. Metastatic bone pain may respond to strong opioids, bisphosphonates, or radiotherapy, and all patients should be considered for referral to a clinical oncologist for further treatment. When increasing the dose of opioids, the next dose should be increased by 30-50%. Conversion factors between opioids are also provided. Opioid side-effects are usually transient, such as nausea and drowsiness, but constipation can persist. In addition to strong opioids, bisphosphonates, and radiotherapy, denosumab may be used to treat metastatic bone pain.

      Overall, the guidelines recommend starting with regular oral morphine and adjusting the dose as needed. Laxatives should be prescribed to prevent constipation, and antiemetics may be needed for nausea. Opioids should be used with caution in patients with chronic kidney disease, and oxycodone is preferred in patients with mild-moderate renal impairment. Metastatic bone pain may respond to strong opioids, bisphosphonates, or radiotherapy, and referral to a clinical oncologist should be considered. Conversion factors between opioids are provided, and the next dose should be increased by 30-50% when adjusting the dose. Opioid side-effects are usually transient, but constipation can persist. Denosumab may also be used to treat metastatic bone pain.

    • This question is part of the following fields:

      • Pharmacology/Therapeutics
      52.4
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  • Question 15 - A 72-year-old man presents to the Haematology Clinic with symptoms of bone pain...

    Incorrect

    • A 72-year-old man presents to the Haematology Clinic with symptoms of bone pain and anaemia. The medical team suspects multiple myeloma (MM) and orders a set of blood tests, including a full blood count, urea, serum creatinine and electrolytes, serum calcium, albumin, serum protein electrophoresis, serum-free light-chain assay, and serum beta-2 microglobulin. The team also plans to perform an imaging investigation to look for osteolytic lesions. What initial scan should be ordered?

      Your Answer: Skeletal survey (X-ray)

      Correct Answer: Whole-body low-dose CT (WBLD-CT)

      Explanation:

      When investigating suspected multiple myeloma (MM), it is crucial to use whole-body low-dose CT (WBLD-CT) imaging. This method is more effective than traditional radiology in detecting lytic lesions and should be the first option if available. Lesions with a diameter of 5mm or more are considered positive. If WBLD-CT and MRI fail to show lesions with a strong clinical indication, an FDG-PET or FDG-PET-CT can be used to detect bone lesions. During treatment follow-up, an FDG-PET-CT can detect active lesions and provide prognostic information. While a skeletal survey (X-ray) is less sensitive than WBLD-CT, it can still be useful. If suspicion remains high for MM despite negative WBLD-CT or skeletal survey results, a whole-body MRI should be performed. This method can detect focal lesions and bone marrow infiltration and may also be of prognostic value in asymptomatic patients. The presence of focal lesions is a strong predictor of progression to symptomatic MM.

    • This question is part of the following fields:

      • Haematology/Oncology
      42.7
      Seconds
  • Question 16 - A 45-year-old man arrives at the hospital accompanied by his spouse. He appears...

    Incorrect

    • A 45-year-old man arrives at the hospital accompanied by his spouse. He appears restless, agitated, sweaty, and tremulous. According to his wife, the patient has been consuming at least half a bottle of vodka daily for several months. However, he has significantly reduced his alcohol intake in the past few days due to a lack of funds. His last drink was approximately eight hours ago. What medication would be the best option for treating this man's symptoms?

      Your Answer: Carbamazepine

      Correct Answer: Chlordiazepoxide

      Explanation:

      In the management of alcohol withdrawal, decreasing doses of long-acting benzodiazepines are commonly used. This is because long-term alcohol use can cause an imbalance in the brain’s excitatory and inhibitory neurotransmitters, leading to symptoms of an overactive sympathetic nervous system when alcohol is suddenly stopped. These symptoms can include restlessness, sweating, tremors, and agitation, and can even progress to seizures and delirium tremens. Long-acting benzodiazepines, such as chlordiazepoxide or diazepam, potentiate the action of the inhibitory neurotransmitter GABA and can help mitigate the risk of seizures and other withdrawal symptoms. Carbamazepine, an anticonvulsant, may also be used as a second-line medication if benzodiazepines are not appropriate. Haloperidol, a typical antipsychotic, is not typically used in alcohol withdrawal as it does not reduce the risk of seizures. Lorazepam, a short-acting benzodiazepine, is also not typically used in this context as long-acting benzodiazepines are preferred for their longer half-life.

      Alcohol withdrawal occurs when an individual who has been consuming alcohol chronically suddenly stops or reduces their intake. Chronic alcohol consumption enhances the inhibitory effects of GABA in the central nervous system, similar to benzodiazepines, and inhibits NMDA-type glutamate receptors. However, alcohol withdrawal leads to the opposite effect, resulting in decreased inhibitory GABA and increased NMDA glutamate transmission. Symptoms of alcohol withdrawal typically start at 6-12 hours and include tremors, sweating, tachycardia, and anxiety. Seizures are most likely to occur at 36 hours, while delirium tremens, which includes coarse tremors, confusion, delusions, auditory and visual hallucinations, fever, and tachycardia, peak at 48-72 hours.

      Patients with a history of complex withdrawals from alcohol, such as delirium tremens, seizures, or blackouts, should be admitted to the hospital for monitoring until their withdrawals stabilize. The first-line treatment for alcohol withdrawal is long-acting benzodiazepines, such as chlordiazepoxide or diazepam, which are typically given as part of a reducing dose protocol. Lorazepam may be preferable in patients with hepatic failure. Carbamazepine is also effective in treating alcohol withdrawal, while phenytoin is said to be less effective in treating alcohol withdrawal seizures.

    • This question is part of the following fields:

      • Psychiatry
      26.6
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  • Question 17 - A 60-year-old woman presents to her General Practitioner with mild central abdominal discomfort....

    Correct

    • A 60-year-old woman presents to her General Practitioner with mild central abdominal discomfort. She also reports unintentional weight loss over the past four months. However, she denies any rectal bleeding or fatigue and has no significant family history.
      What is the most appropriate course of action for management?

      Your Answer: 2-week wait referral to the colorectal services

      Explanation:

      Referral for Investigation of Colorectal Cancer with a 2-Week Wait

      According to the National Institute for Health and Care Excellence (NICE) guidelines, patients aged 40 or over who present with unexplained weight loss and abdominal pain should be referred for investigation of colorectal cancer with a 2-week wait. Other criteria for a 2-week wait referral include patients with unexplained rectal bleeding, iron-deficiency anaemia, change in bowel habit, positive faecal occult blood tests, rectal or abdominal mass, unexplained anal mass or anal ulceration, and patients under 50 years with rectal bleeding and any of the following unexplained symptoms or findings: abdominal pain, change in bowel habit, weight loss or iron-deficiency anaemia.

      Doing nothing and just following up with the patient, prescribing analgesia and following up in one month, referring the patient routinely, or taking urgent bloods and following up in two weeks would not be appropriate in the presence of red-flag symptoms and can create a serious delay in diagnosis and treatment. Therefore, referral for investigation of colorectal cancer with a 2-week wait is the recommended course of action. However, taking urgent bloods and following up the patient in two weeks can still be done while the patient is waiting for the referral appointment.

    • This question is part of the following fields:

      • Gastroenterology/Nutrition
      41.7
      Seconds
  • Question 18 - A 47-year-old woman presents to the Stroke Clinic for review after experiencing a...

    Incorrect

    • A 47-year-old woman presents to the Stroke Clinic for review after experiencing a transient ischaemic attack (TIA). It is suspected that the patient’s TIA was caused by an issue with her carotid arteries.
      A magnetic resonance angiogram (MRA) is requested followed by catheter angiography. The MRA shows a right internal carotid with narrowed eccentric lumen, surrounded by a crescent-shaped mural thrombus and thin annular enhancement. The catheter angiogram shows a ‘string sign’ in the right internal carotid.
      What internal carotid abnormality is most likely the cause of this patient’s TIA?

      Your Answer: Carotid-artery occlusion

      Correct Answer: Carotid-artery dissection

      Explanation:

      Cervico-cerebral arterial dissections (CADs) are a common cause of strokes in younger patients, accounting for almost 20% of strokes in those under 45 years old. The majority of cases involve the extracranial internal carotid artery, while extracranial vertebral dissections make up about 15% of cases. A high level of suspicion is necessary to diagnose CAD, and confirmation can be obtained through various imaging techniques such as Doppler ultrasonography, magnetic resonance imaging/magnetic resonance angiography (MRA), computed tomography angiography (CTA), or catheter angiography. CTA can reveal several characteristic features of CAD, including an abnormal vessel contour, enlargement of the dissected artery, an intimal flap, and a dissecting aneurysm. The traditional method of diagnosing arterial dissections is catheter angiography, which typically shows a long segment of narrowed lumen known as the string sign. Other conditions such as carotid-artery pseudoaneurysm, carotid-artery aneurysm, carotid-artery occlusion, and carotid-artery stenosis can also be identified through imaging techniques, but they are not evident in this particular angiogram.

    • This question is part of the following fields:

      • Neurology
      58.3
      Seconds
  • Question 19 - A 58-year-old man comes to his General Practitioner for evaluation, and it is...

    Correct

    • A 58-year-old man comes to his General Practitioner for evaluation, and it is observed that he is experiencing behavioural issues. The GP recommends additional testing with a potential diagnosis of frontotemporal dementia (FTD) or Lewy body dementia (LBD) being considered.
      What aspect of the patient's medical history would suggest that LBD is the more probable diagnosis?

      Your Answer: Fluctuating confusion and hallucination

      Explanation:

      Understanding the Signs and Symptoms of Frontotemporal Dementia and Lewy Body Dementia

      Frontotemporal dementia (FTD) and Lewy body dementia (LBD) are two types of dementia that can cause a range of symptoms. Understanding the signs and symptoms of these conditions can help with early diagnosis and treatment.

      Fluctuating confusion and hallucination are common signs of LBD, which is caused by protein deposits in nerve cells in the brain. People with LBD may also experience Parkinson’s disease symptoms such as rigid muscles and tremors. On the other hand, FTD is characterized by an insidious onset and a gradual progression. Personality changes, social-conduct problems, and a decline in judgment and empathy are common features of FTD.

      While memory loss is a more prominent symptom in early Alzheimer’s, it can also occur in advanced stages of FTD and LBD. However, relatively preserved memory is more characteristic of FTD in its early stages. Additionally, FTD tends to have an onset before age 65, with some cases diagnosed in individuals as young as 17 years old.

      Overall, recognizing the signs and symptoms of FTD and LBD can help with early diagnosis and management of these conditions.

    • This question is part of the following fields:

      • Neurology
      34.3
      Seconds
  • Question 20 - Sarah is a 44-year-old hairdresser who contacts her GP due to a 2-day...

    Correct

    • Sarah is a 44-year-old hairdresser who contacts her GP due to a 2-day history of cough and fever. Her Covid-19 test is negative and she does not sound breathless on the phone. Sarah has been taking paracetamol regularly but despite this, she is still feeling feverish; she has recorded her temperature as 37.8ºC. She has a past medical history of eczema, gilbert's syndrome and adrenal insufficiency. She takes hydrocortisone 15 mg in the morning and 10mg at lunchtime, and also takes fludrocortisone 200 micrograms once a day.
      What is the most appropriate management plan for Sarah?

      Your Answer: Double the dose of his hydrocortisone

      Explanation:

      To manage an Addison’s patient with an intercurrent illness, it is recommended to double the dose of their glucocorticoids, specifically hydrocortisone, while keeping the fludrocortisone dose the same. This is because the patient’s fever >37.5 indicates a moderate intercurrent illness. Continuing paracetamol regularly is not the main priority in this situation. Advising the patient to call 999 for admission is unnecessary unless there are severe symptoms such as vomiting or persistent diarrhea. Doubling the dose of fludrocortisone is not recommended as it is a mineralocorticoid with weak glucocorticoid activity, and increasing the glucocorticoid is necessary to mimic a stress response.

      Addison’s disease is a condition that requires patients to undergo both glucocorticoid and mineralocorticoid replacement therapy. This treatment usually involves taking a combination of hydrocortisone and fludrocortisone. Hydrocortisone is typically given in 2 or 3 divided doses, with patients requiring 20-30 mg per day, mostly in the first half of the day. Patient education is crucial, and it is essential to emphasize the importance of not missing glucocorticoid doses. Additionally, patients should consider wearing MedicAlert bracelets and steroid cards, and they should be provided with hydrocortisone for injection with needles and syringes to treat an adrenal crisis.

      During an intercurrent illness, it is crucial to manage the glucocorticoid dose properly. In simple terms, the glucocorticoid dose should be doubled, while the fludrocortisone dose should remain the same. The Addison’s Clinical Advisory Panel has produced guidelines that detail specific scenarios, and patients should refer to these guidelines for more information. It is essential to discuss how to adjust the glucocorticoid dose during an intercurrent illness with a healthcare professional. Proper management of Addison’s disease is crucial to ensure that patients can lead healthy and fulfilling lives.

    • This question is part of the following fields:

      • Infectious Diseases
      86.4
      Seconds

SESSION STATS - PERFORMANCE PER SPECIALTY

Paediatrics (0/1) 0%
Renal Medicine/Urology (2/2) 100%
Dermatology (0/1) 0%
Respiratory Medicine (1/1) 100%
Reproductive Medicine (1/1) 100%
Haematology/Oncology (1/2) 50%
Gastroenterology/Nutrition (4/4) 100%
Neurology (2/4) 50%
Psychiatry (0/2) 0%
Pharmacology/Therapeutics (0/1) 0%
Infectious Diseases (1/1) 100%
Passmed