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  • Question 1 - A young adult woman complains that her mother interferes in every aspect of...

    Incorrect

    • A young adult woman complains that her mother interferes in every aspect of her life and tries to control her. The woman no longer speaks to her parents or eats meals with them. The mother has increased her efforts to maintain control.

      Which of the following conditions could arise from this situation?

      Your Answer: Dissociative identity disorder

      Correct Answer: Anorexia nervosa

      Explanation:

      Psychological Disorders and Family Dynamics

      Family dynamics can play a role in the development of certain psychological disorders. Anorexia nervosa, for example, may be linked to attempts to regain control and self-esteem through food restriction and weight loss. Dissociative identity disorder, on the other hand, is associated with severe childhood trauma, particularly sexual abuse. Narcissistic personality disorder is characterised by exaggerated feelings of self-importance and a strong need for approval from others. Schizophrenia may be influenced by highly expressed emotions within the family. Separation anxiety disorder, however, does not seem to be present in the given vignette. Understanding the relationship between family dynamics and psychological disorders can aid in diagnosis and treatment.

    • This question is part of the following fields:

      • Psychiatry
      34.6
      Seconds
  • Question 2 - A 42-year-old female presents to her primary care physician with a 2-month history...

    Correct

    • A 42-year-old female presents to her primary care physician with a 2-month history of progressive fatigue. She has a medical history of type-1 diabetes mellitus. Her doctor orders a full blood count, which reveals a low Hb and high mean cell volume. The platelet and WBC counts are within normal limits. Which antibody test should be performed to assist in the diagnosis?

      Your Answer: Intrinsic-factor antibodies

      Explanation:

      When investigating vitamin B12 deficiency, intrinsic factor antibodies are more useful than gastric parietal cell antibodies due to the low specificity of the latter. Megaloblastic anaemia, characterized by low haemoglobin and raised mean cell volume, can be caused by B12 or folate deficiency and may indicate pernicious anaemia, an autoimmune condition that impairs B12 uptake. Intrinsic factor antibodies are more specific for pernicious anaemia and are commonly used to confirm the diagnosis along with a blood test. Anti-histone antibodies are involved in drug-induced lupus caused by certain drugs. Anti-TTG antibodies are used to screen for coeliac disease, which can cause microcytic anaemia due to iron deficiency from malabsorption. While gastric parietal cell antibodies are linked to pernicious anaemia, their low specificity makes them less reliable for diagnosis compared to intrinsic factor antibodies.

      Understanding Pernicious Anaemia

      Pernicious anaemia is a condition that results in vitamin B12 deficiency due to an autoimmune disorder affecting the gastric mucosa. The term pernicious means causing harm in a gradual or subtle way, and this is reflected in the often subtle symptoms and delayed diagnosis of the condition. While pernicious anaemia is the most common cause of vitamin B12 deficiency, other causes include atrophic gastritis, gastrectomy, and malnutrition.

      The pathophysiology of pernicious anaemia involves antibodies to intrinsic factor and/or gastric parietal cells. These antibodies can bind to intrinsic factor, blocking the vitamin B12 binding site, or reduce acid production and cause atrophic gastritis. This leads to reduced intrinsic factor production and reduced vitamin B12 absorption, which can result in megaloblastic anaemia and neuropathy.

      Risk factors for pernicious anaemia include being female, middle to old age, and having other autoimmune disorders such as thyroid disease, type 1 diabetes mellitus, Addison’s, rheumatoid arthritis, and vitiligo. It is also more common in individuals with blood group A.

      Symptoms of pernicious anaemia include anaemia features such as lethargy, pallor, and dyspnoea, as well as neurological features such as peripheral neuropathy and subacute combined degeneration of the spinal cord. Neuropsychiatric features such as memory loss, poor concentration, confusion, depression, and irritability may also be present, along with mild jaundice and glossitis.

      Diagnosis of pernicious anaemia involves a full blood count, vitamin B12 and folate levels, and testing for antibodies such as anti intrinsic factor antibodies and anti gastric parietal cell antibodies. Treatment involves vitamin B12 replacement, usually given intramuscularly, and folic acid supplementation may also be required. Complications of pernicious anaemia include an increased risk of gastric cancer.

    • This question is part of the following fields:

      • Haematology/Oncology
      62
      Seconds
  • Question 3 - A 60-year-old man presents to his GP with a three month history of...

    Correct

    • A 60-year-old man presents to his GP with a three month history of intermittent pain and numbness in his fourth and fifth fingers.
      Which of the following is the most likely cause of his symptoms?

      Your Answer: Ulnar nerve entrapment

      Explanation:

      Common Hand and Wrist Conditions: Symptoms and Characteristics

      Ulnar Nerve Entrapment
      Ulnar neuropathy is a common condition where the ulnar nerve is compressed at or near the elbow. Patients experience numbness and tingling in the fifth finger and ulnar half of the fourth finger, along with weakness of grip and potential muscle wasting. In severe cases, a claw hand deformity may occur.

      De Quervain’s Tenosynovitis
      Also known as mother’s wrist, this condition is caused by tendinitis in the tendons of the first dorsal compartment of the wrist. Patients experience pain during thumb and wrist movement, along with tenderness and thickening at the radial styloid. Finkelstein’s test causes sharp pain at the first dorsal compartment, and a prominent radial styloid may be visible. There is no associated sensory loss.

      Carpal Tunnel Syndrome
      This condition occurs when the median nerve is compressed as it passes through the carpal tunnel at the wrist. Symptoms include numbness and tingling in the thumb and radial fingers, aching and pain in the anterior wrist and forearm, and potential weakness and clumsiness in the hand. Risk factors include female sex, pregnancy, hypothyroidism, connective tissue disease, obesity, trauma, dialysis, and repetitive stress.

      Dupuytren’s Contracture
      This progressive fibrous tissue contracture of the palmar fascia mainly affects men over 40 with a family history. Patients experience difficulty with manual dexterity, palmar nodules, and eventually flexion contractures in the fourth and fifth fingers. There is no sensory deficit. Risk factors include smoking, alcohol, heavy manual labor, trauma, and diabetes.

      Radial Nerve Palsy
      Radial nerve palsy results in wrist drop and loss of triceps reflex, along with potential sensory loss in the dorsal thumb and forearm. The radial nerve does not supply sensory innervation to the fourth and fifth fingers.

    • This question is part of the following fields:

      • Neurology
      31.1
      Seconds
  • Question 4 - A 31-year-old primigravida woman presents to the emergency department after a fall. She...

    Correct

    • A 31-year-old primigravida woman presents to the emergency department after a fall. She is currently 36 weeks pregnant and experienced convulsions for approximately 1 minute following the fall. The patient has a medical history of systemic lupus erythematosus and has been experiencing headaches and swollen feet for the past 48 hours. Upon assessment, her heart rate is 87 bpm and blood pressure is 179/115 mmHg. What is the next best course of action for her management?

      Your Answer: Intravenous magnesium sulphate

      Explanation:

      The recommended first-line treatment for eclampsia is intravenous magnesium sulphate. In this case, the woman has been diagnosed with eclampsia due to her tonic-clonic seizure and her symptoms of pre-eclampsia for the past two days. The initial management should focus on preventing further seizures and providing neuroprotection to the fetus, followed by considering delivery. It is important to monitor both the mother and fetus for signs of hypermagnesaemia, such as hyperreflexia and respiratory depression, and to continuously monitor their cardiotocography. Emergency caesarean section is not the most appropriate initial management as the woman needs to be stabilized first, given her high risk of having further seizures. Intravenous anti-hypertensives should also be administered after magnesium sulphate to lower her blood pressure. Intravenous furosemide and monitoring cardiotocography are not recommended as furosemide does not lower blood pressure in eclampsia. Intramuscular steroids are not necessary in this case as the woman is 35 weeks pregnant, and fetal lungs should be fully developed by now. Steroids are also not the most important management at this stage, even if the woman was earlier in her pregnancy.

      Understanding Eclampsia and its Treatment

      Eclampsia is a condition that occurs when seizures develop in association with pre-eclampsia, a pregnancy-induced hypertension that is characterized by proteinuria and occurs after 20 weeks of gestation. To prevent seizures in patients with severe pre-eclampsia and treat seizures once they develop, magnesium sulphate is commonly used. However, it is important to note that this medication should only be given once a decision to deliver has been made. In cases of eclampsia, an IV bolus of 4g over 5-10 minutes should be given, followed by an infusion of 1g/hour. During treatment, it is crucial to monitor urine output, reflexes, respiratory rate, and oxygen saturations. Respiratory depression can occur, and calcium gluconate is the first-line treatment for magnesium sulphate-induced respiratory depression. Treatment should continue for 24 hours after the last seizure or delivery, as around 40% of seizures occur post-partum. Additionally, fluid restriction is necessary to avoid the potentially serious consequences of fluid overload.

      In summary, understanding the development of eclampsia and its treatment is crucial in managing this potentially life-threatening condition. Magnesium sulphate is the primary medication used to prevent and treat seizures, but it should only be given once a decision to deliver has been made. Monitoring vital signs and urine output is essential during treatment, and calcium gluconate should be readily available in case of respiratory depression. Finally, fluid restriction is necessary to avoid complications associated with fluid overload.

    • This question is part of the following fields:

      • Reproductive Medicine
      73.2
      Seconds
  • Question 5 - A 50-year-old man visits the Gastroenterology Clinic with concerns about his tongue. He...

    Incorrect

    • A 50-year-old man visits the Gastroenterology Clinic with concerns about his tongue. He has noticed unusual patterns on his tongue that have been present for a while, but he is worried about tongue cancer as he has been a heavy smoker for the past 20 years. What is the most suitable initial management option for this patient?

      Your Answer: Aspiration for cytology

      Correct Answer: None

      Explanation:

      Geographic Tongue: A Benign Condition Requiring No Medical Intervention

      Geographic tongue, also known as benign migratory glossitis, is a common condition that affects up to 3% of the general population. While some patients may experience a burning sensation when consuming hot or spicy foods, most are asymptomatic. The diagnosis of geographic tongue can usually be confirmed from history and physical examination alone, and no medical intervention is required.

      Surgical correction is not warranted for geographic tongue, as it is a benign condition of no clinical significance. Aspiration for cytology is also not appropriate, as the diagnosis can be made without further investigation. Excision biopsy may actually cause harm, as histological findings are identical to those seen in pustular psoriasis.

      A full blood count is not necessary for the diagnosis of geographic tongue. Instead, the condition can be identified through the elongation of rete ridges, hyperparakeratosis and acanthosis at the periphery, loss of filiform papillae, and migration and clustering of neutrophils within the epithelium towards the centre of the lesions. The predominant inflammatory infiltrates in the lamina propria is neutrophils with an admixture of chronic inflammatory cells.

      In summary, geographic tongue is a benign condition that requires no medical intervention. Diagnosis can be made through history and physical examination alone, and further investigation may cause harm.

    • This question is part of the following fields:

      • Gastroenterology/Nutrition
      66.1
      Seconds
  • Question 6 - A 28-year-old woman returns from a holiday in Kenya with symptoms of foul-smelling...

    Correct

    • A 28-year-old woman returns from a holiday in Kenya with symptoms of foul-smelling loose stools, abdominal cramps and frequent flatulence. She has had the symptoms for five days when she presents to her General Practitioner for advice. A diagnosis of giardiasis is suspected.
      What would be the most useful investigation to request for this patient?

      Your Answer: Send stool culture for microscopy and culture (MC+S)

      Explanation:

      Diagnostic Tests for Giardiasis: Which Ones Are Necessary?

      Giardiasis is a common parasitic infection that can cause gastrointestinal symptoms such as diarrhoea, abdominal pain, and bloating. If a patient presents with these symptoms and has a history of recent foreign travel, giardiasis should be considered as a possible cause. Here are some diagnostic tests that may be ordered to confirm the diagnosis:

      Stool Culture for Microscopy and Culture (MC+S)
      This test is specific for detecting giardia and other potential parasitic causes of gastrointestinal symptoms. It involves sending three stool specimens 2-3 days apart to a laboratory for analysis.

      Colonoscopy
      A colonoscopy is not necessary to diagnose giardiasis, as the patient’s symptoms and travel history are usually sufficient to suggest the diagnosis. A stool culture is a more appropriate test.

      Duodenal Biopsy
      A duodenal biopsy is not necessary to diagnose giardiasis, as it is an invasive test that is typically reserved for investigating malabsorption, iron-deficiency anaemia, or neoplasia.

      Full Blood Count
      A full blood count is not useful for diagnosing giardiasis, as it typically does not cause peripheral leukocytosis or eosinophilia.

      In summary, a stool culture for MC+S is the most appropriate test for diagnosing giardiasis in a patient with gastrointestinal symptoms and a history of recent foreign travel. Other tests, such as colonoscopy, duodenal biopsy, and full blood count, are not necessary for making the diagnosis.

    • This question is part of the following fields:

      • Infectious Diseases
      26
      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
      39.9
      Seconds
  • Question 8 - A 15-year-old student presents with low back pain that radiates to the back...

    Correct

    • A 15-year-old student presents with low back pain that radiates to the back of their legs. They have an elevated ESR and negative serum rheumatoid factor. A spine radiograph reveals anterior squaring of the vertebrae.
      What is the most probable diagnosis?

      Your Answer: Ankylosing spondylitis (AS)

      Explanation:

      Ankylosing spondylitis (AS) is a type of arthritis that is characterized by morning stiffness lasting more than 30 minutes, improvement of back pain with exercise but not rest, awakening due to back pain during the second half of the night, and alternating buttock pain. It is a seronegative spondyloarthropathy, meaning that the rheumatoid factor will be negative. Radiographically, sacroiliitis is often the first abnormality seen. ESR and CRP are usually raised, and HLA-B27 testing may provide supporting evidence. Lumbar disc prolapse with sciatica, rheumatoid arthritis, spinal stenosis, and Paget’s disease of bone are other conditions that may cause similar symptoms but have different characteristics and diagnostic criteria.

    • This question is part of the following fields:

      • Musculoskeletal
      16.2
      Seconds
  • Question 9 - A 10-year-old boy is being seen in the paediatric asthma clinic for a...

    Correct

    • A 10-year-old boy is being seen in the paediatric asthma clinic for a review of his asthma. He was diagnosed with asthma 6 months ago and has been using a salbutamol 100mcg metered dose inhaler with a spacer. According to his mother, he has been using his inhaler about 4 times a week and has had 1 episode of waking up at night with difficulty breathing. There have been no recent respiratory infections or changes in his environment. On examination, he appears to be in good health. His inhaler technique is satisfactory. Do you recommend any changes to his asthma medication?

      Your Answer: Paediatric low-dose ICS

      Explanation:

      Managing Asthma in Children: NICE Guidelines

      Asthma management in children has been updated by NICE in 2017, following the 2016 BTS guidelines. The new guidelines for children aged 5-16 are similar to those for adults, with a stepwise approach for treatment. For newly-diagnosed asthma, short-acting beta agonist (SABA) is recommended. If symptoms persist, a combination of SABA and paediatric low-dose inhaled corticosteroid (ICS) is used. Leukotriene receptor antagonist (LTRA) is added if symptoms still persist, followed by long-acting beta agonist (LABA) if necessary. Maintenance and reliever therapy (MART) is used as a combination of ICS and LABA for daily maintenance therapy and symptom relief. For children under 5 years old, clinical judgement plays a greater role in diagnosis. The stepwise approach is similar to that for older children, with an 8-week trial of paediatric moderate-dose ICS before adding LTRA. If symptoms persist, referral to a paediatric asthma specialist is recommended.

      It should be noted that NICE does not recommend changing treatment for well-controlled asthma patients simply to adhere to the latest guidelines. The definitions of low, moderate, and high-dose ICS have also changed, with different definitions for adults and children. For children, <= 200 micrograms budesonide or equivalent is considered a paediatric low dose, 200-400 micrograms is a moderate dose, and > 400 micrograms is a high dose. Overall, the new NICE guidelines provide a clear and concise approach to managing asthma in children.

    • This question is part of the following fields:

      • Paediatrics
      36.3
      Seconds
  • Question 10 - A 60-year-old man with a history of high blood pressure and high cholesterol...

    Incorrect

    • A 60-year-old man with a history of high blood pressure and high cholesterol presents to the Emergency Department with occasional episodes of chest pain, lasting only for a few minutes. This occurs while at rest and is accompanied by palpitations. He is currently stable, with a blood pressure of 140/95 mmHg, oxygen saturation of 98% and a heart rate of 160 bpm. An electrocardiogram (ECG) is done which shows no P waves, with regular narrow QRS complexes interspersed along a saw-tooth baseline. Vagal manoeuvres have failed and three boluses of adenosine fail to control the arrhythmia.
      Given the likely diagnosis, which of the following treatments is indicated?
      Select the SINGLE best treatment option from the list below.

      Your Answer: Synchronised direct-current (DC) cardioversion

      Correct Answer: Bisoprolol

      Explanation:

      Management of Atrial Flutter: Medications and Procedures

      Atrial flutter is a type of arrhythmia that can be managed through various medications and procedures. The first step in treatment is to control the ventricular rate, which can be achieved through the administration of beta-blockers or rate-limiting calcium-channel blockers. For patients with diabetes mellitus, cardio-selective beta-blockers such as atenolol, bisoprolol, metoprolol, and nebivolol are preferred.

      Amiodarone is not the first-line treatment for atrial flutter and is mainly used for ventricular tachycardias and chemical cardioversion in atrial fibrillation. Propranolol can be used for rate control, but cardio-selective beta-blockers are preferred for patients with diabetes mellitus.

      Synchronised direct-current (DC) cardioversion is the first-line treatment for patients with haemodynamic instability caused by a tachyarrhythmia. However, if the patient exhibits no adverse signs, DC cardioversion is not indicated. Unsynchronised DC cardioversion is only given in cases of ventricular fibrillation.

      All patients should be assessed for their risk of stroke and the need for thromboprophylaxis, with the choice of anticoagulant based on scoring criteria such as CHA2DS2-VASc. Overall, the management of atrial flutter involves a tailored approach based on the individual patient’s needs and medical history.

    • This question is part of the following fields:

      • Cardiovascular
      102.6
      Seconds
  • Question 11 - A 45-year-old man presents to the Emergency Department feeling very sick. He reports...

    Correct

    • A 45-year-old man presents to the Emergency Department feeling very sick. He reports having flu-like symptoms for the past few days and is having difficulty keeping anything down. He feels weak, drowsy, and disoriented. He experiences dizziness when he stands up. Upon observation, he is found to be tachycardic and hypotensive with a fever. He reports taking only hydrocortisone 10 mg PO bidaily for Addison's disease. What is the most crucial management step in this case?

      Your Answer: Give 100 mg hydrocortisone intravenous (IV) STAT

      Explanation:

      Managing Addisonian Crisis: Treatment Options and Considerations

      Addisonian crisis is a life-threatening condition that requires prompt intervention. Patients with Addison’s disease are at risk of developing an Addisonian crisis if they forget to take their steroids or if steroids have not been increased appropriately during an accompanying illness. In such cases, the first-line treatment is to administer 100 mg hydrocortisone intravenously (IV) STAT. This should be followed by fluid resuscitation and IV glucose if hypoglycemia is present.

      It is important to note that treatment should be initiated before biochemical results are obtained. Patients with Addison’s disease should carry an IM autoinjector in case of an emergency. If an Addisonian crisis is suspected, hydrocortisone should be administered immediately, and blood tests for cortisol, ACTH, urea and electrolytes, and glucose should be carried out urgently.

      Oral hydrocortisone is not recommended in cases where the patient is vomiting. In such cases, IM hydrocortisone injection is the preferred treatment option. Additionally, glucose gel sublingually may be given for hypoglycemia, but the primary focus should be on restoring cortisol levels.

      Fludrocortisone may be of use if the cause of the Addisonian crisis is adrenal disease. However, it should be noted that hydrocortisone is the first-line treatment as it acts mainly on glucocorticoid receptors to increase blood sugar levels and counteract insulin. Fludrocortisone, on the other hand, acts mainly at mineralocorticoid receptors.

      In conclusion, managing Addisonian crisis requires prompt intervention and careful consideration of treatment options. Administering hydrocortisone, fluid resuscitation, and IV glucose if necessary should be the primary focus, with fludrocortisone being considered only if the cause is adrenal disease.

    • This question is part of the following fields:

      • Endocrinology/Metabolic Disease
      60.5
      Seconds
  • Question 12 - A 28-year-old male patient visits his GP with complaints of progressive tunnel vision...

    Correct

    • A 28-year-old male patient visits his GP with complaints of progressive tunnel vision and difficulty seeing at night for the past year. He recalls his grandfather experiencing similar symptoms but is unsure of the cause. During fundus examination, bone-spicule pigmentation is observed in the peripheral retina. What is the probable diagnosis?

      Your Answer: Retinitis pigmentosa

      Explanation:

      The presence of black bone-spicule pigmentation on fundoscopy is a classic sign of retinitis pigmentosa, an inherited retinal disorder that causes tunnel vision and night blindness by affecting the peripheral retina.

      Understanding Retinitis Pigmentosa

      Retinitis pigmentosa is a condition that primarily affects the peripheral retina, leading to tunnel vision. The initial sign of this condition is often night blindness, which can progress to a loss of peripheral vision. Fundoscopy, a diagnostic test, reveals black bone spicule-shaped pigmentation in the peripheral retina and mottling of the retinal pigment epithelium. Retinitis pigmentosa is often associated with other diseases such as Refsum disease, Usher syndrome, abetalipoproteinemia, Lawrence-Moon-Biedl syndrome, Kearns-Sayre syndrome, and Alport’s syndrome.

      To better understand retinitis pigmentosa, it is important to know that it is a genetic disorder that affects the retina’s ability to respond to light. This condition can lead to the death of photoreceptor cells in the retina, which are responsible for detecting light and transmitting visual information to the brain. As a result, individuals with retinitis pigmentosa may experience difficulty seeing in low light conditions, loss of peripheral vision, and, in severe cases, complete blindness.

      In summary, retinitis pigmentosa is a genetic condition that primarily affects the peripheral retina, leading to tunnel vision. It is often associated with other diseases and can cause night blindness, loss of peripheral vision, and, in severe cases, complete blindness. Early diagnosis and management are crucial in preventing further vision loss.

    • This question is part of the following fields:

      • Ophthalmology
      139.1
      Seconds
  • Question 13 - After expressing discomfort in their chest, a 75-year-old patient suddenly collapses on the...

    Correct

    • After expressing discomfort in their chest, a 75-year-old patient suddenly collapses on the surgical ward with no detectable pulse. The medical team initiates cardiopulmonary resuscitation (CPR) and calls for immediate assistance.
      Once the defibrillator is connected, the team pauses to check the rhythm. Although there is organised electrical activity, there is still no pulse or signs of life.
      In addition to continuing CPR with a ratio of 30 compressions to 2 breaths, what other actions should the team take at this stage?

      Your Answer: Give intravenous adrenaline

      Explanation:

      In the case of pulseless electrical activity, which is a non-shockable rhythm, the ALS algorithm requires the administration of adrenaline as soon as intravascular access is achieved. This should be done immediately after the rhythm check, following two more minutes of CPR. The recommended dose is 1mg IV, which should be repeated every 3-5 minutes. It is important to note that intramuscular adrenaline is not appropriate for cardiac arrest, and IV amiodarone is not indicated for non-shockable rhythms. While it is correct to avoid shocking the patient, it is incorrect to delay drug administration until the next rhythm check. The most recent Resuscitation Council Guidelines (2021) support the immediate administration of adrenaline in non-shockable rhythms.

      The 2015 Resus Council guidelines for adult advanced life support outline the steps to be taken when dealing with patients with shockable and non-shockable rhythms. For both types of patients, chest compressions are a crucial part of the process, with a ratio of 30 compressions to 2 ventilations. Defibrillation is recommended for shockable rhythms, with a single shock for VF/pulseless VT followed by 2 minutes of CPR. Adrenaline and amiodarone are the drugs of choice for non-shockable rhythms, with adrenaline given as soon as possible and amiodarone administered after 3 shocks for VF/pulseless VT. Thrombolytic drugs should be considered if a pulmonary embolus is suspected. Atropine is no longer recommended for routine use in asystole or PEA. Oxygen should be titrated to achieve saturations of 94-98% following successful resuscitation. The Hs and Ts should be considered as potential reversible causes of cardiac arrest.

    • This question is part of the following fields:

      • Cardiovascular
      30.5
      Seconds
  • Question 14 - A 45-year-old woman presents to the Emergency Department with a 2-month history of...

    Incorrect

    • A 45-year-old woman presents to the Emergency Department with a 2-month history of dull abdominal pain. It is central and occasionally radiates to her back. However, this is not always present and it seems to get worse half an hour after a meal. She denies any vomiting or diarrhoea but confirms that painful episodes are accompanied by nausea.
      The patient does not have any past medical history but admits that she has been drinking a glass of wine every night for the past 15 years. An abdominal X-ray is done.
      Given the likely diagnosis, which of the following findings are most likely to be seen on the abdominal X-ray?
      Select the SINGLE most likely finding from the list below.

      Your Answer: Rigler sign

      Correct Answer: Pancreatic calcifications

      Explanation:

      The patient’s symptoms of dull, central abdominal pain that worsens after meals and radiates to the back, along with a history of regular alcohol consumption, suggest a diagnosis of chronic pancreatitis. Imaging studies, such as an abdominal X-ray or CT scan, may reveal pancreatic calcifications, which are a common finding in chronic pancreatitis. If imaging is inconclusive, a faecal elastase test may be used to assess pancreatic exocrine function. The presence of the football sign, air under the diaphragm, dilated loops of small bowel, or the Rigler sign on an abdominal X-ray would suggest other conditions such as gastrointestinal perforation or bowel obstruction, which do not fit the patient’s presentation.

    • This question is part of the following fields:

      • Gastroenterology/Nutrition
      54.1
      Seconds
  • Question 15 - A 30-year-old male presents with a bilateral high-stepping gait. He is typically healthy,...

    Correct

    • A 30-year-old male presents with a bilateral high-stepping gait. He is typically healthy, works as a personal trainer, and enjoys rock climbing in his free time. During the examination, there is bilateral weakness of dorsiflexion (3/5) and slightly decreased sensation over the dorsal aspect of his feet. The compression of which nerve do you suspect is responsible for his symptoms, possibly caused by his high rock climbing boots?

      Your Answer: Common fibular nerve

      Explanation:

      Damage to the common peroneal nerve can result in weakened dorsiflexion and eversion of the foot. The nerve runs laterally through the popliteal fossa and over the neck of the fibula before entering the medial compartment of the leg. This area is susceptible to compression or injury, leading to sensory and motor impairments. In this case, the individual’s tight abseiling boots have been compressing their common peroneal nerve.

      Understanding Common Peroneal Nerve Lesion

      A common peroneal nerve lesion is a type of nerve injury that often occurs at the neck of the fibula. This nerve is a branch of the sciatic nerve, which divides into the tibial and common peroneal nerves. The most notable symptom of this type of nerve damage is foot drop, which is characterized by weakness or paralysis of the muscles that lift the foot.

      In addition to foot drop, other symptoms of a common peroneal nerve lesion may include weakness in foot dorsiflexion and eversion, as well as the extensor hallucis longus muscle. Sensory loss may also occur over the dorsum of the foot and the lower lateral part of the leg, and there may be wasting of the anterior tibial and peroneal muscles.

      Overall, understanding the symptoms of a common peroneal nerve lesion can help individuals recognize and seek treatment for this type of nerve injury. With proper care and management, it may be possible to improve symptoms and prevent further damage to the affected nerve.

    • This question is part of the following fields:

      • Neurology
      89.4
      Seconds
  • Question 16 - You are reviewing some blood results and notice that a 32-year-old man admitted...

    Incorrect

    • You are reviewing some blood results and notice that a 32-year-old man admitted earlier has hyperkalaemia. You go back and review the drugs he is taking to see if any of them could be contributing to the newly diagnosed hyperkalaemia.
      Which of the following would contribute to the patient’s hyperkalaemia?

      Your Answer: Lithium

      Correct Answer: Digoxin

      Explanation:

      Drugs and their Effects on Serum Potassium Levels

      Serum potassium levels can be affected by various drugs. Digoxin toxicity, especially in patients with renal impairment, can cause hyperkalaemia. Theophylline can lead to hypokalaemia, which can be potentiated by concomitant treatment with corticosteroids and diuretics. Loop and thiazide diuretics can also cause hypokalaemia due to increased sodium reabsorption at the expense of potassium and hydrogen ions. β-agonists such as bronchodilators can cause hypokalaemia, while β-blockade can lead to hyponatraemia and hyperkalaemia. Lithium use is not associated with changes in serum potassium levels. It is important to monitor serum potassium concentrations when using these drugs to prevent adverse effects.

    • This question is part of the following fields:

      • Pharmacology/Therapeutics
      72.5
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  • Question 17 - A 27-year-old man complains of a sudden pain in the back of his...

    Correct

    • A 27-year-old man complains of a sudden pain in the back of his calf during a football game, causing him to limp off the field. Upon examination by the team doctor, he exhibits a positive Simmond's sign. What type of injury is he likely to have suffered?

      Your Answer: Achilles tendon rupture

      Explanation:

      If a person experiences an audible ‘pop’ in their ankle, sudden and severe pain in the calf or ankle, or is unable to continue playing a sport or running, an Achilles tendon rupture should be suspected. Posterior ankle impingement is characterized by pain during forced plantar flexion when jumping or kicking, and is most commonly seen in gymnasts, ballet dancers, and footballers. Navicular bone fractures, which are stress fractures, are frequently observed in athletes who engage in sports that involve sprinting and jumping. Athletes who have had multiple ankle sprains may experience peroneal tendon dislocation due to friction and inflammation of the tendon. Stress metatarsal fractures, also known as march fractures, are most commonly seen in soldiers, hikers, and hospital doctors who spend extended periods standing and walking.

      Achilles tendon disorders are a common cause of pain in the back of the heel. These disorders can include tendinopathy, partial tears, and complete ruptures of the Achilles tendon. Certain factors, such as the use of quinolone antibiotics and high cholesterol levels, can increase the risk of developing these disorders. Symptoms of Achilles tendinopathy typically include gradual onset of pain that worsens with activity, as well as morning stiffness. Treatment for this condition usually involves pain relief, reducing activities that exacerbate the pain, and performing calf muscle eccentric exercises.

      In contrast, an Achilles tendon rupture is a more serious condition that requires immediate medical attention. This type of injury is often caused by sudden, forceful movements during sports or running. Symptoms of an Achilles tendon rupture include an audible popping sound, sudden and severe pain in the calf or ankle, and an inability to walk or continue the activity. To help diagnose an Achilles tendon rupture, doctors may use Simmond’s triad, which involves examining the foot for abnormal angles and feeling for a gap in the tendon. Ultrasound is typically the first imaging test used to confirm a diagnosis of Achilles tendon rupture. If a rupture is suspected, it is important to seek medical attention from an orthopaedic specialist as soon as possible.

    • This question is part of the following fields:

      • Musculoskeletal
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  • Question 18 - A 28-year-old female is admitted to the Medical Admissions Unit with symptoms of...

    Correct

    • A 28-year-old female is admitted to the Medical Admissions Unit with symptoms of neck stiffness, photophobia, and fever. No rash is present, and her GCS is 15. Upon lumbar puncture, her CSF shows increased opening pressure and turbidity, with a raised white cell count and low glucose. Ceftriaxone is initiated, but what additional treatment is necessary to enhance outcomes?

      Your Answer: Dexamethasone

      Explanation:

      The patient’s presentation and CSF results strongly suggest bacterial meningitis, for which appropriate antibiotic therapy has been initiated. To improve neurological outcomes and reduce the risk of sequelae such as deafness, dexamethasone is the recommended additional treatment. However, it should be noted that dexamethasone is contraindicated in cases of septic shock or meningococcal septicaemia. Antivirals such as aciclovir are not indicated in bacterial meningitis, while fluconazole, an anti-fungal, is also not appropriate. Prednisolone has no role in the treatment of meningitis.

      The investigation and management of suspected bacterial meningitis are intertwined due to the potential negative impact of delayed antibiotic treatment. Patients should be urgently transferred to the hospital, and an ABC approach should be taken initially. A lumbar puncture should be delayed in certain circumstances, and IV antibiotics should be given as a priority if there is any doubt. The bloods and CSF should be tested for various parameters, and prophylaxis should be offered to households and close contacts of patients affected with meningococcal meningitis.

    • This question is part of the following fields:

      • Infectious Diseases
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  • Question 19 - Treatment of an acute attack of gout with allopurinol may result in which...

    Correct

    • Treatment of an acute attack of gout with allopurinol may result in which of the following?

      Select the SINGLE result from the list below.

      Your Answer: Exacerbation and prolongation of the attack

      Explanation:

      To effectively treat gout, it is important to understand the proper use of allopurinol. Starting prophylactic treatment with allopurinol should be delayed until 1-2 weeks after the inflammation has settled to avoid exacerbating and prolonging the attack. It may take several weeks to reduce uric acid levels to normal, and the dose should be titrated every few weeks until sUA levels are below 300 mmol/l. It is not recommended to start allopurinol during an acute attack, as it is unlikely to lead to complete remission of symptoms. Allopurinol use is not associated with an increased risk of acute pyelonephritis, but renal impairment may occur if the starting dose is too high. In mild cases, self-care may be considered, but if drug treatment is necessary, NSAIDs or colchicine can be prescribed. It is important to measure the baseline sUA level and consider prophylaxis in high-risk patients. When starting allopurinol, a low dose of NSAID or colchicine should be co-prescribed for at least 1 month to prevent acute attacks of gout.

    • This question is part of the following fields:

      • Musculoskeletal
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  • Question 20 - A 28-year-old woman presents with a history of headache every day for the...

    Correct

    • A 28-year-old woman presents with a history of headache every day for the past three months. She describes that it is worse in the evening. There are no associated symptoms.
      Which of the following is the most likely diagnosis?

      Your Answer: Tension headache

      Explanation:

      Understanding Different Types of Headaches

      Headaches are a common ailment that can be caused by a variety of factors. Here are some of the different types of headaches and their distinguishing characteristics:

      1. Tension headache: This type of headache is often described as a tight, band-like pain across the forehead and is more common in females. It typically worsens towards the end of the day but does not interfere with daily activities. Chronic tension headaches occur at least 15 days of the month for at least three months.

      2. Brain tumour: Headaches caused by space-occupying lesions tend to be worse in the morning and when bending forward. They may also be associated with vomiting.

      3. Cluster headache: This type of headache is more common in men and presents with intense pain localized around one eye, which can last for a few minutes up to three hours. There may also be simultaneous lacrimation and nasal congestion. Symptoms occur every day or multiple times every day for a number of weeks, followed by a symptom-free period lasting months or even years.

      4. Giant cell arteritis: This type of headache typically occurs in those aged over 50 years and is characterized by an abrupt onset and recurrent daily headache. Common symptoms include scalp pain/tenderness, jaw claudication, visual disturbances, fever, weight loss, and lethargy. A diagnosis of GCA requires three out of five specific criteria.

      5. Migraine: Migraines can occur daily but are typically accompanied by associated features such as nausea or vomiting, photophobia, or phonophobia. The International Headache Society criteria for migraine without aura include at least five attacks fulfilling specific criteria.

      Understanding the different types of headaches and their characteristics can help in proper diagnosis and treatment.

    • This question is part of the following fields:

      • Neurology
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SESSION STATS - PERFORMANCE PER SPECIALTY

Psychiatry (0/1) 0%
Haematology/Oncology (1/1) 100%
Neurology (3/3) 100%
Reproductive Medicine (1/1) 100%
Gastroenterology/Nutrition (1/3) 33%
Infectious Diseases (2/2) 100%
Musculoskeletal (3/3) 100%
Paediatrics (1/1) 100%
Cardiovascular (1/2) 50%
Endocrinology/Metabolic Disease (1/1) 100%
Ophthalmology (1/1) 100%
Pharmacology/Therapeutics (0/1) 0%
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