ATI LPN
ATI LPN Mental Health Exam IV Questions
Extract:
Question 1 of 5
A nurse is assisting with teaching a newly licensed nurse about heart sounds. Which of the following sounds is heard when the aortic and pulmonic valves close?
Correct Answer: B
Rationale: S2, the “dub” sound, occurs when the aortic and pulmonic (semilunar) valves close at the end of systole. S1 is mitral and tricuspid closure. S3 indicates rapid ventricular filling (e.g., heart failure). S4 reflects atrial contraction against a stiff ventricle. S2 directly correlates with semilunar valve closure.
Question 2 of 5
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Question 3 of 5
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Question 4 of 5
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Question 5 of 5
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