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  • Question 1 - A 60 yr. old man with previous history of myocardial infarction and hypertension...

    Incorrect

    • A 60 yr. old man with previous history of myocardial infarction and hypertension presented with severe retrosternal chest pain for the past 2 hours. During initial management he collapsed and pulseless ventricular tachycardia was detected. The external defibrillator arrived in 3 minutes. From the following answers, what is the most appropriate immediate management of this patient?

      Your Answer: Await arrival of defibrillator, then deliver shock

      Correct Answer: He should be given a precordial thump

      Explanation:

      A precordial thumb is not routinely recommended because of its very low success rate for cardioversion of a shockable rhythm. It’s only recommended when there is a delay in getting the defibrillator.

    • This question is part of the following fields:

      • Cardiology
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      Seconds

  • Question 2 - A 80 yr. old male patient with ischaemic heart disease, hypertension and dyslipidaemia...

    Incorrect

    • A 80 yr. old male patient with ischaemic heart disease, hypertension and dyslipidaemia presented with productive cough, fever with chills and loss of appetite for 4 days. On examination he was unwell and febrile with a temperature of 38.3. His blood pressure was 130/80mmHg and pulse rate was 140 bpm. Respiratory rate was 18 breaths per minute. On auscultation there were crepitations over the left lower zone of his chest. His abdomen was soft and non-tender. ECG showed an irregular narrow complex tachycardia. Which of the following is the most appropriate acute management to treat his tachycardia?

      Your Answer:

      Correct Answer: Antibiotics

      Explanation:

      The most likely diagnosis is acute atrial fibrillation (AF) precipitated by acute pneumonia. History of fever, cough and the auscultation findings support it. So the most appropriate management is treating the pneumonia with antibiotics. Treating the underlying cause will reduce the heart rate. Other responses are helpful in the management of chronic AF.

    • This question is part of the following fields:

      • Cardiology
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  • Question 3 - A 25 yr. old male presented with an episode of syncope. His examination...

    Incorrect

    • A 25 yr. old male presented with an episode of syncope. His examination findings were normal. He gave a history of sudden cardiac death of a close relative. His ECG showed incomplete right bundle-branch block and ST-segment elevations in the anterior precordial leads. What is the most probable diagnosis?

      Your Answer:

      Correct Answer: Brugada syndrome

      Explanation:

      Brugada syndrome is an autosomal dominant disorder characterized by sudden cardiac death. The positive family history and characteristic ECG findings are in favour of Brugada syndrome. Usually the physical findings are normal.

    • This question is part of the following fields:

      • Cardiology
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      Seconds

  • Question 4 - A 60 yr. old previously well male patient was admitted with acute severe...

    Incorrect

    • A 60 yr. old previously well male patient was admitted with acute severe central chest pain associated with excessive sweating and nausea for the past 45 minutes. On examination he was found to have xanthelasma. His blood pressure was 170/100 mmHg and pulse rate was 104 bpm. His ECG showed ST elevation more than 2mm in leads II, III and aVF. His troponin T was 120 ng/ml. His FBC and renal functions were normal. He was given aspirin, clopidogrel, morphine and IV 5mg of atenolol. Which of the following is the most appropriate next step?

      Your Answer:

      Correct Answer: Immediate referral to cardiologist for primary angioplasty

      Explanation:

      The diagnosis is acute inferior ST elevation myocardial infarction so the most appropriate management is primary angioplasty.

    • This question is part of the following fields:

      • Cardiology
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  • Question 5 - A 50 yr. old male presented with acute severe central chest pain and...

    Incorrect

    • A 50 yr. old male presented with acute severe central chest pain and acute ST elevation myocardial infarction was diagnosed. He was treated with streptokinase. 2 days later he was sweating excessively and he was found to be hypotensive. Which of the following cannot be considered as a reason for this presentation?

      Your Answer:

      Correct Answer: Hypotensive effect of streptokinase

      Explanation:

      Hypotensive effect of streptokinase occurs during the streptokinase infusion which is usually transient. Acute mitral regurgitation due to rupture of papillary muscles, ventricular septal defects and reinfarctions (left or right) are known to cause hypotension after 24 hrs. Pulmonary embolism is less likely but cannot be excluded.

    • This question is part of the following fields:

      • Cardiology
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  • Question 6 - A 68 yr. old male with history of poorly controlled hypertension was admitted...

    Incorrect

    • A 68 yr. old male with history of poorly controlled hypertension was admitted with shortness of breath on exertion, orthopnoea for three months. He was diagnosed with congestive cardiac failure and was started on digoxin 62.5 μg daily, furosemide 80mg daily and amiloride 10mg daily. On admission his lab results showed that his serum urea was 6 mmol/L and serum creatinine was 115 μmol/L. One month later he came for a follow up consultation. On examination he had bilateral ankle oedema. His blood pressure was 138/90 mmHg and pulse rate was 92 bpm. His JVP was not elevated. His apex beat was displaced laterally and he had a few bibasal crepitations on auscultation. There were no cardiac murmurs. His investigation results revealed the following: Serum sodium 143 mmol/L (137-144), Serum potassium 3.5 mmol/L (3.5-4.9), Serum urea 8 mmol/L (2.5-7.5), Serum creatinine 140 μmol/L (60-110), Serum digoxin 0.7 ng/mL (1.0-2.0). CXR showed cardiomegaly and a calcified aorta. ECG showed left ventricular hypertrophy. Which of the following is the most appropriate next step in the management of this patient?

      Your Answer:

      Correct Answer: Add an ACE inhibitor to the current regimen

      Explanation:

      From the given history the patient has NYHA grade III heart failure. He can be safely started on an ACE inhibitor as his serum potassium was towards the lower limit. As there an impairment of renal function, his urea, creatinine and serum electrolytes should be closely monitored after commencing an ACE inhibitor. Adding atenolol will not have any clinical benefit. Increasing the digoxin dose is not needed as the patient is in sinus rhythm. Increasing furosemide will only have symptomatic relief.

    • This question is part of the following fields:

      • Cardiology
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  • Question 7 - A 42 yr. old previously well woman presented with acute severe central chest...

    Incorrect

    • A 42 yr. old previously well woman presented with acute severe central chest pain for the past 2 hours. She has a family history of premature coronary artery disease. Her husband passed away recently due to prostate cancer. On examination her blood pressure was 130/80 mmHg and pulse rate was 80 bpm. Her ECG showed ST segment elevation and her troponin was slightly elevated. Emergency angiogram revealed slight wall irregularities with no luminal obstruction. Cardiovascular MR showed an apical ballooning of the myocardium resembling an octopus pot. Which of the following is the most likely cause for the ST segment elevation?

      Your Answer:

      Correct Answer: Takotsubo cardiomyopathy

      Explanation:

      Causes for ST segment elevation other than myocardial infarction
      Natural variants
      -Early repolarization
      -Left ventricular hypertrophy and hypertrophic cardiomyopathy
      -Left bundle branch block
      Artefacts
      -Leads mispositioning
      -Electrical cardioversion
      Cardiovascular diseases
      -Pericarditis/ Myocarditis
      -Aortic dissection
      -Prinzmetal’s angina
      -Takotsubo Cardiomyopathy
      -Brugada Syndrome and arrhythmogenic right ventricular cardiomyopathy/dysplasia
      Pulmonary diseases
      -Pulmonary thromboembolism
      -Pneumothorax
      -Atelectasis and pulmonary metastases
      Gastrointestinal diseases
      -Acute pancreatitis
      -Acute cholecystitis
      Other conditions
      -Hyperkalaemia
      -Drug induced ST segment elevation (e.g. – clozapine)
      -Haemorrhagic cerebrovascular disease

      Coronary artery disease and myocardial infarction can be excluded with a negative angiogram and a slightly elevated troponin. Hypertrophic cardiomyopathy can be excluded with cardiovascular MR findings. Left ventricular aneurysm usually occurs following a myocardial infarction, but there is no positive history for that. The characteristic findings on cardiovascular MR confirms the diagnosis of Takotsubo cardiomyopathy.

    • This question is part of the following fields:

      • Cardiology
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  • Question 8 - A 30 yr. old primigravida in her 23rd week of pregnancy presented with...

    Incorrect

    • A 30 yr. old primigravida in her 23rd week of pregnancy presented with palpitations. Her ECG showed supraventricular tachycardia (SVT). 15 minutes after admission the SVT spontaneously reverted to sinus rhythm. She had two episodes of SVT later which were associated with palpitations. Which of the following is the most appropriate treatment for this presentation?

      Your Answer:

      Correct Answer: Verapamil

      Explanation:

      Both long-acting calcium channel blockers and beta blockers improve symptoms of patients with SVT. Verapamil does not have adverse maternal or fetal side effects which would suggest that the use of verapamil in the treatment of supraventricular arrhythmias in pregnancy is safe and effective. Beta blockers are associated with intrauterine fetal growth restriction.

    • This question is part of the following fields:

      • Cardiology
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  • Question 9 - A 60 yr. old male smoker and a known hypertensive presented with central...

    Incorrect

    • A 60 yr. old male smoker and a known hypertensive presented with central chest pain radiating to the back. On examination he was tachycardic and hypotensive. His ECG showed inferior ST elevation and his transoesophageal echocardiogram showed a double lumen in the ascending aorta. Which of the following is the most probable diagnosis?

      Your Answer:

      Correct Answer: Dissecting aortic aneurysm

      Explanation:

      The classic history in this high risk patient is suggestive of a dissecting aortic aneurysm. His transoesophageal echocardiogram confirms the diagnosis. ST elevation in ECG is probably due to the extension of the dissection of the aorta which results in compromised coronary blood supply.

    • This question is part of the following fields:

      • Cardiology
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  • Question 10 - A 50 yr. old smoker with a history of hypertension presented with acute...

    Incorrect

    • A 50 yr. old smoker with a history of hypertension presented with acute severe chest pain and acute myocardial infarction was diagnosed. Which of the following is a contraindication for thrombolysis?

      Your Answer:

      Correct Answer: History of likely ischaemic stroke within the past month

      Explanation:

      Absolute contraindications for fibrinolytic use in STEMI

      Prior intracranial haemorrhage (ICH)
      Known structural cerebral vascular lesion
      Known malignant intracranial neoplasm
      Ischemic stroke within 3 months
      Suspected aortic dissection
      Active bleeding or bleeding diathesis (excluding menses)
      Significant closed head trauma or facial trauma within 3 months
      Intracranial or intraspinal surgery within 2 months
      Severe uncontrolled hypertension (unresponsive to emergency therapy)
      For streptokinase, prior treatment within the previous 6 months

    • This question is part of the following fields:

      • Cardiology
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