Pharmacology · single question
Which cardiac condition does NOT require antibiotic prophylaxis before invasive dental procedures under current AHA guidelines?
Show answer and explanation
Correct answer: C. Mitral valve prolapse
Under the current AHA guidelines mitral valve prolapse (even with regurgitation) is NOT on the list of conditions requiring prophylaxis; prophylaxis is reserved for the highest-risk conditions only.Other options: Prosthetic valves, prior infective endocarditis, and unrepaired cyanotic congenital heart disease are all high-risk conditions that DO require prophylaxis.Key exam takeaway: Only 4 categories need prophylaxis: prosthetic valve, prior IE, certain congenital heart defects, and cardiac transplant with valvulopathy. MVP is not one of them.