Cardiovascular: MI, Heart Failure, Arrhythmias · USMLE Step 1

A patient with MI develops papillary muscle rupture. What murmur is expected?

  1. Aortic regurgitation
  2. Mitral regurgitation
  3. Tricuspid stenosis
  4. Pulmonic regurgitation
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Correct answer: Mitral regurgitation

Papillary muscle rupture leads to acute mitral regurgitation, causing a holosystolic murmur and pulmonary edema.

Difficulty: Medium Question 18 of 20

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