A 24-year-old man has exertional presyncope. His father died suddenly at age 36. Examination shows a harsh systolic murmur that increases with

Question

A 24-year-old man has exertional presyncope. His father died suddenly at age 36. Examination shows a harsh systolic murmur that increases with standing and Valsalva. ECG shows left ventricular hypertrophy. Which of the following is the most likely diagnosis?

Accepted Answer

Hypertrophic cardiomyopathy

Answer

Chronic constrictive pericarditis

Answer

Pulmonary embolism

Answer

Atrial septal defect

Answer

Patent ductus arteriosus

Hypertrophic cardiomyopathy — USMLE Step 3 MCQ

A 24-year-old man has exertional presyncope. His father died suddenly at age 36. Examination shows a harsh systolic murmur that increases with standing and Valsalva. ECG shows left ventricular hypertrophy. Which of the following is the most likely diagnosis?