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?

Answer and Explanation

The Correct Answer is B

Choice A reason : S1 represents the sound made by the closure of the atrioventricular valves (mitral and tricuspid valves) and is not the sound associated with the closure of the aortic and pulmonic valves.

Choice B reason : S2 is the sound heard when the aortic and pulmonic valves close. It is often described as a "dub" and occurs at the end of ventricular systole.

Choice C reason : S3 is a rare extra heart sound that follows S2 and usually indicates an increase in left ventricular filling pressure, which can be found in conditions such as heart failure.

Choice D reason : S4 is another extra heart sound that occurs just before S1. It is typically associated with a stiff or hypertrophic ventricle and is not related to the closure of the aortic and pulmonic valves

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Correct Answer is A

Explanation

Choice A reason: Pain assessment is a critical priority for postoperative patients. After aortic valve replacement surgery, patients may experience discomfort or pain related to the incision site, chest tube placement, or other surgical interventions. Pain assessment allows the nurse to evaluate the effectiveness of pain management strategies, adjust medications as needed, and ensure the patient's comfort and well-being. Pain can also impact vital signs and overall recovery, so addressing it promptly is essential.

Choice B reason: Monitoring blood pressure is important, but it is not the highest priority immediately after surgery. Blood pressure assessment is part of routine postoperative care, but it does not directly address the patient's immediate comfort or potential complications. However, if the patient's blood pressure becomes significantly abnormal, it would require immediate attention.

Choice C reason: Checking bowel sounds is relevant for assessing gastrointestinal function, but it is not the top priority immediately postoperatively. Bowel sounds may be diminished initially due to anesthesia, surgical manipulation, or bowel rest. However, assessing pain and other vital signs takes precedence over bowel sounds in the immediate recovery period.

Choice D reason: Assessing the catheter insertion site is essential, especially if the patient has an indwelling urinary catheter. However, it is not the highest priority immediately after aortic valve replacement. Pain assessment and monitoring for complications related to surgery (such as bleeding, infection, or cardiac issues) take precedence. The catheter site can be assessed during routine nursing care.

A. The test will be complete in 30 to 60 minutes. B. You may feel a slight tingling while the test is being done. C. The radioactivity from the dye lasts only a few hours. D. I will need to apply electrodes to your chest and extremities.

Correct Answer is D

Explanation

Choice A reason : The statement that the test will be complete in 30 to 60 minutes is incorrect. An ECG is a quick, non-invasive procedure that typically takes only a few minutes to perform.

Choice B reason : The statement about feeling a slight tingling is not accurate for an ECG. This test does not cause any sensations, as it simply records the electrical activity of the heart.

Choice C reason : The mention of radioactivity from dye is not applicable to an ECG. This test does not involve the use of any dyes or radioactive substances. Dyes are typically used in imaging tests like CT scans or MRIs, not ECGs.

Choice D reason : This is the correct statement. For an ECG, electrodes are placed on the patient's chest and extremities to record the electrical activity of the heart. This allows the healthcare provider to assess the heart's rhythm, identify any irregularities, and diagnose conditions.

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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?

Nursing Test Bank

Naxlex Comprehensive Predictor Exams

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Correct Answer is A

Explanation

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Correct Answer is D

Explanation

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