An unlicensed assistive personnel (UAP) asks a nurse how to tell the difference between the firstand second heart sounds. The nurse replies: A) "The first heart sound, or systolic sound, is shorter and higher pitched than the second heart sound, or diastolic sound." B) "The first heart sound, or diastolic sound, is shorter and higher pitched than the second heart sound, or systolic sound." C) The first heart sound, or diastolic sound, is shorter, softer, and lower pitched than the second heart sound, or systolic sound. D) "The first heart sound, or systolic sound, is longer, louder, and lower pitched than the second hart sound, or diastolic sound."

Question

Quizplus · Accepted Answer

The first heart sound (S1) is associated with the closure of the mitral and tricuspid valves at the beginning of systole, making it longer, louder, and lower pitched compared to the second heart sound (S2), which is associated with the closure of the aortic and pulmonary valves at the beginning of diastole.

An Unlicensed Assistive Personnel (UAP) Asks a Nurse How to Tell