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The nurse is asked to describe what the heart sound S1 represents. What would be the correct response by the nurse?

A.

Closure of mitral and aortic valves

B.

Closure of mitral and tricuspid valves

C.

Closure of pulmonic and tricuspid valves

D.

Closure of pulmonic and aortic valves

E.

Closure of aortic and tricuspid valves

Answer and Explanation

The Correct Answer is B

A. This option incorrectly includes the aortic valve rather than the tricuspid valve in the S1 heart sound.

 

B. S1 represents the closure of the mitral and tricuspid valves, which occurs at the beginning of ventricular systole and produces the "lub" sound.

 

C. The pulmonic valve closure is associated with the S2 heart sound, not S1.

 

D. The closure of the pulmonic and aortic valves occurs in S2, not S1.

 

E. This combination is incorrect, as S1 is associated with mitral and tricuspid valve closure.


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View Related questions

Correct Answer is B

Explanation

A. 3+ edema indicates moderate pitting (indentation depth of 5-7 mm and lasting 10-20 seconds).

B. 1+ edema is classified as slight pitting (indentation depth less than 2 mm that disappears rapidly, typically in less than 10 seconds), making this the correct documentation.

C. 2+ edema indicates moderate pitting (indentation depth of 3-4 mm that lasts up to 15 seconds).

D. +0 indicates no edema present at all.

E. 4+ edema indicates severe pitting (indentation depth of greater than 8 mm and lasting more than 20 seconds).

Correct Answer is ["A","B","E"]

Explanation

A. Edema is a common finding in heart failure due to fluid retention.

B. Shortness of breath occurs due to fluid accumulation in the lungs, common in heart failure.

C. Increased appetite is not typical in heart failure; decreased appetite is more common.

D. Weight gain due to fluid retention is more common in heart failure, rather than extreme weight loss.

E. Jugular vein distention is a classic sign of right-sided heart failure due to increased central venous pressure.

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