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

Closure of mitral and aortic valves

Closure of mitral and tricuspid valves

Closure of pulmonic and tricuspid valves

Closure of pulmonic and aortic valves

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

Explanation

A. Immobility is a significant risk factor for venous thromboembolism (VTE) since prolonged inactivity can lead to stasis of blood flow, increasing clot formation risk.
B. Smoking contributes to hypercoagulability and vascular damage, both of which elevate the risk of clot formation in veins.
C. A history of stomach ulcers is not directly associated with an increased risk of blood clots; rather, it pertains more to gastrointestinal health.
D. Overhydration generally does not increase the risk of blood clots; rather, maintaining adequate hydration is important for circulation.
E. Taking birth control pills can increase the risk of blood clots due to hormonal changes that promote hypercoagulability.

A. Performing chest percussion on a client with atelectasis B. Auscultate lungs on a client with audible wheezing C. Taking vital signs on a male client with severe dyspnea D. Suctioning a client with hemoptysis (bloody sputum) E. Setting up a meal tray for a client with COPD

Correct Answer is E

Explanation

A. Chest percussion is a specialized skill that should be performed by a nurse or respiratory therapist due to the risk of complications.
B. Lung auscultation requires assessment skills and clinical judgment, which is within the RN’s scope of practice, not the CNA’s.
C. Taking vital signs on a client with severe dyspnea may require immediate interpretation and intervention, best handled by an RN.
D. Suctioning requires skill and knowledge of the procedure and potential complications, which should be performed by the RN.
E. Setting up a meal tray is an appropriate task for a CNA, as it does not require nursing judgment and supports the client’s nutritional needs.

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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?

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Naxlex Comprehensive Predictor Exams

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

Explanation

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Correct Answer is E

Explanation

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