Mitral stenosis murmur timing?

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Multiple Choice

Mitral stenosis murmur timing?

Explanation:
Mitral stenosis produces a diastolic rumble at the apex that begins after the second heart sound. The stiff mitral valve opens in early diastole after S2, and as blood flows through the narrowed orifice a turbulent flow generates the murmur that lasts through much of diastole, often with a noticeable bump just before S1 when the atrium contracts (presystolic accentuation). This timing—diastole following S2—is what distinguishes it from murmurs that occur in systole.

Mitral stenosis produces a diastolic rumble at the apex that begins after the second heart sound. The stiff mitral valve opens in early diastole after S2, and as blood flows through the narrowed orifice a turbulent flow generates the murmur that lasts through much of diastole, often with a noticeable bump just before S1 when the atrium contracts (presystolic accentuation). This timing—diastole following S2—is what distinguishes it from murmurs that occur in systole.

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