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A nurse is performing a cardiac assessment on a client and auscultates an S3 sound. The nurse should recognize that this sound represents which of the following heart conditions?

A.

Closure of pulmonic valve

B.

Closure of the mitral valve

C.

Ventricular gallop

D.

Atrial gallop

Answer and Explanation

The Correct Answer is C

Ventricular gallop is another name for the S3 sound, which is a low-pitched sound heard at the end of diastole, just after the S2 sound. It is caused by the rapid filling of the ventricles and the vibration of the ventricular walls.

Closure of the pulmonic valve is one of the components of the S2 sound, which is a high-pitched sound heard at the end of the systole, just before the S1 sound. It is caused by the closure of the semilunar valves (pulmonic and aortic).

Closure of the mitral valve is one of the components of the S1 sound, which is a high-pitched sound heard at the beginning of systole, just after the S2 sound. It is caused by the closure of the atrioventricular valves (mitral and tricuspid).

d. Atrial gallop is another name for the S4 sound, which is a low-pitched sound heard at the end of diastole, just before the S1 sound. It is caused by atrial contraction and increased resistance to ventricular filling.


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Related Questions

Correct Answer is ["125 mL\/hr"]

Explanation

To calculate the infusion rate, the nurse should use the following formula:

Infusion rate (mL/hr) = Volume (mL) / Time (hr)

Plugging in the given values, the nurse should get:

Infusion rate (mL/hr) = 250 mL / 2 hr

Infusion rate (mL/hr) = 125 mL/hr

The nurse should round the answer to the nearest whole number and use a leading zero if it applies. Therefore, the nurse should set the IV pump to deliver 125 mL/hr.

Correct Answer is ["50"]

Explanation

To calculate the gt/min, the nurse should use the following formula:

gt/min = (mL/hr x drop factor) / 60

Plugging in the given values, we get:

gt/min = (150 mL/hr x 20 gt/mL) / 60

gt/min = 3000 gt/hr / 60 gt/min = 50 gt/min

Therefore, the nurse should set the manual IV infusion to deliver 50 gt/min.

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