Cardiovascular: MI, Heart Failure, Arrhythmias Practice Questions
20 free Cardiovascular: MI, Heart Failure, Arrhythmias practice questions for the USMLE Step 1, each with the correct answer and a detailed explanation. Open any question below, or take the full set as an interactive quiz.
Questions
20 questions
All Cardiovascular: MI, Heart Failure, Arrhythmias questions
- Q1. A 58-year-old man presents with crushing substernal chest pain radiating to the left arm. ECG shows ST elevation in leads II, III, and aVF. Which artery is mos…
- Q2. A patient with congestive heart failure has bilateral leg swelling and jugular venous distention. Which side of the heart is failing?
- Q3. A 63-year-old man collapses suddenly. ECG shows chaotic, irregular waveforms with no identifiable P waves or QRS complexes. What is the diagnosis?
- Q4. A patient presents with dyspnea and orthopnea. Lung exam reveals rales. Which condition best explains these findings?
- Q5. A patient with an acute MI has elevated troponin levels. How long do troponin levels typically remain elevated?
- Q6. A patient with atrial fibrillation presents with an irregularly irregular pulse. Which structure is most commonly the source of abnormal electrical activity?
- Q7. A patient with heart failure is prescribed spironolactone. What is its primary benefit?
- Q8. A patient with syncope has prolonged QT interval on ECG. Which arrhythmia is he at risk for?
- Q9. A patient presents with new-onset chest pain. ECG shows ST depressions in V4–V6. What is the most likely diagnosis?
- Q10. A patient develops hypotension, distended neck veins, and muffled heart sounds after chest trauma. Which condition is most likely?
- Q11. A 70-year-old man with atrial fibrillation develops sudden left arm weakness. Which complication is most likely responsible?
- Q12. Which electrolyte disturbance increases the risk of digoxin toxicity?
- Q13. A patient presents with bounding pulses, wide pulse pressure, and a blowing diastolic murmur. Which condition is likely?
- Q14. A patient with chronic hypertension has concentric left ventricular hypertrophy. Which mechanism explains this?
- Q15. A man collapses during exercise. ECG shows a delta wave and short PR interval. Which condition is most likely?
- Q16. A patient has S3 heart sound. Which condition is this most associated with?
- Q17. A woman presents with palpitations. ECG shows sawtooth flutter waves. Which arrhythmia is this?
- Q18. A patient with MI develops papillary muscle rupture. What murmur is expected?
- Q19. A young athlete collapses and dies suddenly. Autopsy shows asymmetric septal hypertrophy. Which condition is most likely?
- Q20. A patient develops pulmonary edema in acute left-sided heart failure. Which mechanism is responsible?