Heart Failure USMLE Step 1 Practice Question
A 22 year old man has exertional syncope during sprinting. His uncle died suddenly at age 30. Cardiac examination reveals a harsh systolic murmur at the left sternal border. The murmur becomes louder during the strain phase of the Valsalva maneuver. Which of the following is the most likely diagnosis?
Answer choices
- ATricuspid regurgitation
- BAortic stenosis
- CMitral valve prolapse
- DHypertrophic obstructive cardiomyopathyCorrect answer
- EVentricular septal defect
- FDilated cardiomyopathy
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