10 Days Of High-grade in Medicine / Internal Medicine — 35yo Man | Infectious Diseases | SMLE Q#11292
SMLE Question #11292
Medicine / Internal Medicine
Infectious Diseases
Objective: OBJ-349
Last updated: February 2026
A 35-year-old man, 1 month after mechanical mitral valve replacement, presents with 10 days of high-grade fever with chills, malaise, and 3-kg unintentional weight loss. Transthoracic echocardiography shows a small, mobile vegetation on the prosthetic mitral valve without paravalvular leak. Three sets of blood cultures were obtained and results are pending. Which organism is most likely causing early prosthetic valve endocarditis in this patient?
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