Valvular Heart Disease USMLE Step 1 Practice Question
A 61 year old man with long standing chronic lung disease presents with worsening edema and abdominal fullness. Jugular venous distention is present. Cardiac examination shows a blowing holosystolic murmur best heard at the left lower sternal border that increases with inspiration. Which of the following is the most likely mechanism of this patient's murmur?
Answer choices
- ACalcific degeneration of the pulmonic valve
- BFunctional incompetence from annular dilation of the tricuspid valveCorrect answer
- CCommissural fusion from rheumatic fever
- DLeaflet prolapse due to proteoglycan accumulation
- EAcute rupture of the ventricular septum
- FInfective vegetation destroying the tricuspid valve leaflets
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