Question

In which type of heart failure do we hear S3?

1) Left-sided heart failure
2) Right-sided heart failure
3) Both left-sided and right-sided heart failure
4) Neither left-sided nor right-sided heart failure

Answer 1

The third heart sound, S3, can be heard in both left-sided and right-sided heart failure.

Step-by-step explanation:

In a normal, healthy heart, the third heart sound, S3, is rarely heard. It may indicate congestive heart failure if heard later in life, warranting further tests. Some cardiologists refer to the collective sounds of S1, S2, and S3 as the 'Kentucky gallop,' and it can be associated with both left-sided and right-sided heart failure.