When listening to heart sounds, the nurse expects to hear S1 and S2.The presence of an additional sound immediately following S2 is called _____, which can result from _____.

Question

Quizplus · Accepted Answer

The additional sound following S2 is called S3, which is caused by ventricular volume overload. S4 can also be heard but it occurs just before S1 and is caused by increased resistance to ventricular filling. The other options are not correct as they do not accurately describe the cause or timing of the additional sound.

When Listening to Heart Sounds, the Nurse Expects to Hear