Which heart sound is often associated with heart failure?

Which heart sound is often associated with heart failure?

• A. Murmur continuous
• B. S3/S4
• C. S2 only
• D. No heart sounds

Answer: (B)

In heart failure, abnormal extra heart sounds reflect the stressed state of the ventricles. An S3 gallop appears in early diastole right after S2 when the ventricle rapidly fills from the volume overload common in heart failure. It’s a sign of increased filling pressures and a dilated ventricle, often associated with systolic dysfunction. An S4 gallop occurs just before S1, generated by atrial contraction pushing blood into a stiff, hypertrophied ventricle; it’s commonly seen with long-standing hypertension or LV hypertrophy and can accompany heart failure with preserved EF. Together, S3 and S4 capture the kinds of ventricular abnormalities that heart failure patients commonly exhibit. The other sounds aren’t as specifically linked to heart failure. S2 is a normal valve-closure sound and not a marker of failing cardiac function by itself. A continuous murmur points to other conditions such as a patent ductus arteriosus or other vascular/valvular issues. No heart sounds would not reflect the typical auscultatory findings you’d expect in heart failure.

In heart failure, abnormal extra heart sounds reflect the stressed state of the ventricles. An S3 gallop appears in early diastole right after S2 when the ventricle rapidly fills from the volume overload common in heart failure. It’s a sign of increased filling pressures and a dilated ventricle, often associated with systolic dysfunction. An S4 gallop occurs just before S1, generated by atrial contraction pushing blood into a stiff, hypertrophied ventricle; it’s commonly seen with long-standing hypertension or LV hypertrophy and can accompany heart failure with preserved EF. Together, S3 and S4 capture the kinds of ventricular abnormalities that heart failure patients commonly exhibit.

The other sounds aren’t as specifically linked to heart failure. S2 is a normal valve-closure sound and not a marker of failing cardiac function by itself. A continuous murmur points to other conditions such as a patent ductus arteriosus or other vascular/valvular issues. No heart sounds would not reflect the typical auscultatory findings you’d expect in heart failure.