When assessing the adult heart, the nurse expects to hear the following normal heart sounds:

Question

Quizplus · Accepted Answer

Normally, the first heart sound (S1) is heard followed by the second heart sound (S2). S1 is caused by the closure of the mitral and tricuspid valves, and S2 is caused by the closure of the aortic and pulmonary valves. S3 and S4 sounds are abnormal and are associated with certain conditions such as heart failure or hypertension.

When Assessing the Adult Heart, the Nurse Expects to Hear