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  • Question 1 - A 50 yr. old male patient with schizophrenia complained of chest pain and...

    Correct

    • A 50 yr. old male patient with schizophrenia complained of chest pain and palpitations. His ECG revealed torsades de pointes ventricular tachycardia. He was on thioridazine for schizophrenia. What is the most appropriate management for his presentation?

      Your Answer: IV magnesium

      Explanation:

      Thioridazine has a quinidine-like action on the heart and is known to cause cardiac arrhythmias including prolonged PR and QT intervals and widening of QRS complexes. Intravenous magnesium sulphate is regarded as the treatment of choice for this arrhythmia.

    • This question is part of the following fields:

      • Cardiology
      19.9
      Seconds

  • Question 2 - A 65 yr. old male patient presented with acute severe central chest pain...

    Correct

    • A 65 yr. old male patient presented with acute severe central chest pain for one hour. His ECG confirmed the diagnosis of acute ST elevation myocardial infarction and he was treated with thrombolysis. Two days later he developed sudden onset breathlessness and became unwell. On examination he had bibasal crepitation and a systolic murmur at the apex which radiated to the axilla. Which of the following is the most likely cause for this presentation?

      Your Answer: Ruptured papillary muscle

      Explanation:

      The most likely cause for acute breathlessness is due to papillary muscle rupture which causes mitral regurgitation.

    • This question is part of the following fields:

      • Cardiology
      37.5
      Seconds

  • Question 3 - A 65 yr. old previously well man was referred due to an abnormal...

    Incorrect

    • A 65 yr. old previously well man was referred due to an abnormal heart sound which was detected during a medical check up. On examination he looked well. His blood pressure was 120/70 mmHg and pulse rate was 68 bpm which was regular. His jugular venous pressure was not elevated and he didn't have ankle oedema. He had an early diastolic murmur, best heard at the left sternal edge, which was more clear in expiration when the patient leant forward. His lungs were clear. His FBC, Urea and electrolytes, LFTs and lipid profile were normal. His ECG showed sinus rhythm. His chest X-ray was normal. Echocardiography showed mild to moderate aortic regurgitation with normal left ventricular size and normal function. Which of the following is the most appropriate way of managing this patient?

      Your Answer: Discharge him from the clinic

      Correct Answer: Start him on an angiotensin-converting enzyme (ACE) inhibitor

      Explanation:

      Although this patient’s left ventricular function is normal at the time of examination, there is chance of deterioration of it due to aortic regurgitation. It is found that ACE inhibitors slow the development of left ventricular dysfunction. So this patient should be started on an ACE inhibitor.

    • This question is part of the following fields:

      • Cardiology
      170.5
      Seconds

  • Question 4 - A 32 yr. old primigravida in her 37th week of pregnancy was admitted...

    Correct

    • A 32 yr. old primigravida in her 37th week of pregnancy was admitted for the management of pre-eclampsia. Her blood pressure was 180/110 mmHg and urine protein was +++. Magnesium sulphate was started. Which of the following are important parameters that should be monitored during the administration of magnesium sulphate?

      Your Answer: Reflexes + respiratory rate

      Explanation:

      The clinical effect and toxicity of MgSO4 can be linked to its concentration in plasma. A concentration of 1.8 to 3.0 mmol/L has been suggested for treatment of eclamptic convulsions. Maternal toxicity is rare when MgSO4 is carefully administered and monitored. The first warning of impending toxicity in the mother is loss of the patellar reflex at plasma concentrations between 3.5 and 5 mmol/L. Respiratory paralysis occurs at 5 to 6.5 mmol/L. Cardiac conduction is altered at greater than 7.5 mmol/L, and cardiac arrest can be expected when concentrations of magnesium exceed 12.5 mmol/L. Careful attention to the monitoring guidelines can prevent toxicity. Deep tendon reflexes, respiratory rate, urine output and serum concentrations are the most commonly monitored parameters.

    • This question is part of the following fields:

      • Cardiology
      8.7
      Seconds

  • Question 5 - A 65 yr. old male presented with acute ST elevation myocardial infarction and...

    Correct

    • A 65 yr. old male presented with acute ST elevation myocardial infarction and thrombolysis was planned. Which of the following is an absolute contraindication for thrombolysis?

      Your Answer: Intracerebral Haemorrhage

      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
      31.3
      Seconds

  • Question 6 - A 32 yr. old male who was on methadone has suddenly collapsed while...

    Correct

    • A 32 yr. old male who was on methadone has suddenly collapsed while running and was found dead. What is the most likely cause for his death?

      Your Answer: Prolonged QT

      Explanation:

      Methadone and cocaine can cause QT prolongation through the direct effects on the resting membrane potential. Methadone can increase QT dispersion in addition to QT interval. Methadone inhibits the Human Ether-a-go-go Related Gene (hERG) and causes QTc prolongation and development of Torsades de point. Brugada-like syndrome is another condition found in methadone users which predisposes the users to life-threatening ventricular tachycardia and sudden cardiac death.

    • This question is part of the following fields:

      • Cardiology
      12.7
      Seconds

  • Question 7 - A 60 yr. old man with atrial fibrillation (AF) who is on warfarin,...

    Correct

    • A 60 yr. old man with atrial fibrillation (AF) who is on warfarin, is awaiting tooth extraction. His latest INR 2 weeks ago was 2.7 and his target INR is 2.0-3.0. Which of the following is the most appropriate management?

      Your Answer: Check INR 72 hours before procedure, proceed if INR < 3.5

      Explanation:

      The latest research recommends that simple tooth extraction in patients on warfarin treatment can be performed safely without high risk of bleeding, providing that the INR is equal to or less than 3.5 on the day of extraction. A close follow-up and monitoring of patients taking warfarin is mandatory after dental extraction.

    • This question is part of the following fields:

      • Cardiology
      15
      Seconds

  • Question 8 - A 70 yr. old female was brought in by the paramedics after she...

    Correct

    • A 70 yr. old female was brought in by the paramedics after she collapsed whilst shopping. She has a tachycardia of 150 bpm and her BP is 100/60 mmHg. Her ECG showed a broad complex tachycardia. Which of the following is more suggestive of a ventricular tachycardia (VT) over a supraventricular tachycardia (SVT) with aberrant conduction?

      Your Answer: Atrioventricular dissociation

      Explanation:

      To differentiate VT from SVT with aberrant conduction the following electrocardiographic features should be looked for:

      Evidence of preceding atrial activity for SVT. Oesophageal leads are helpful if P waves are hidden in the QRS complex.
      QRS duration more than 140 ms for VT.
      QRS morphology: Features of QRS morphology that favour SVT are RBBB or triphasic patterns like rSR in V1 and qRS in V6. Monophasic pattern like R or qR in V1 and rS or QS in V6 or multiple morphology QRS complexes favour VT.
      AV dissociation for VT.

    • This question is part of the following fields:

      • Cardiology
      27.2
      Seconds

  • Question 9 - Which of the following is not an indication for an implantable cardiac defibrillator?...

    Incorrect

    • Which of the following is not an indication for an implantable cardiac defibrillator?

      Your Answer: Hypertrophic obstructive cardiomyopathy

      Correct Answer: Wolff-Parkinson White syndrome

      Explanation:

      Class I indications (i.e., the benefit greatly outweighs the risk, and the treatment should be administered): -Structural heart disease, sustained VT
      -Syncope of undetermined origin, inducible VT or VF at electrophysiologic study (EPS)
      -Left ventricular ejection fraction (LVEF) ≤35% due to prior MI, at least 40 days post-MI, NYHA class II or III
      -LVEF ≤35%, NYHA class II or III
      -LVEF ≤30% due to prior MI, at least 40 days post-MI
      -LVEF ≤40% due to prior MI, inducible VT or VF at EPS

      Class IIa indications (i.e., the benefit outweighs the risk and it is reasonable to administer the treatment):
      -Unexplained syncope, significant LV dysfunction, nonischaemic cardiomyopathy
      -Sustained VT, normal or near-normal ventricular function
      -Hypertrophic cardiomyopathy with 1 or more major risk factors
      -Arrhythmogenic right ventricular dysplasia/cardiomyopathy (ARVD/C) with 1 or more risk factors for sudden cardiac death (SCD)
      -Long QT syndrome, syncope or VT while receiving beta-blockers
      -Nonhospitalized patients awaiting heart transplant
      -Brugada syndrome, syncope or VT
      -Catecholaminergic polymorphic VT, syncope or VT while receiving beta-blockers
      -Cardiac sarcoidosis, giant cell myocarditis, or Chagas disease

    • This question is part of the following fields:

      • Cardiology
      13.5
      Seconds

  • Question 10 - Which of the following gives the annual incidence of deep venous thrombosis (DVT)...

    Correct

    • Which of the following gives the annual incidence of deep venous thrombosis (DVT) in the general population?

      Your Answer: about 2 per 1000

      Explanation:

      Annual incidence of DVT in the general population is about 1 per 1000 adults. So the most suitable answer is about 2 per 1000.

    • This question is part of the following fields:

      • Cardiology
      5.6
      Seconds

SESSION STATS - PERFORMANCE PER SPECIALTY

Cardiology (8/10) 80%
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