Which laboratory test result will the nurse review to determine the effects of therapy for a patient being treated for heart failure?
Homocysteine
Low-density lipoprotein (LDL)
Troponin
B-type natriuretic peptide (BNP)
The Correct Answer is D
A. Homocysteine is a marker for cardiovascular risk but is not used to monitor heart failure therapy.
B. LDL levels are associated with cholesterol management and do not directly reflect heart failure treatment effectiveness.
C. Troponin is a marker of myocardial injury, not heart failure severity.
D. B-type natriuretic peptide (BNP) levels correlate with the severity of heart failure and are used to monitor the effectiveness of heart failure therapy.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is B
Explanation
A. While a CVP catheter might be in place for an extended period, its purpose is not directly related to heart healing.
B. The CVP catheter is used to monitor central venous pressure, which helps guide fluid management and assess right heart function.
C. The CVP catheter does not extend into the left ventricle; it is typically positioned in the superior vena cava or right atrium.
D. The CVP catheter may have multiple lumens for administering fluids, but its primary purpose is hemodynamic monitoring, not just providing IV access.
Correct Answer is A
Explanation
A. Numbness and tingling in the left hand could indicate compromised blood flow or nerve damage, potentially due to the arterial line, requiring immediate assessment and intervention.
B. Slight bloody drainage is a common finding and typically does not require immediate action.
C. A dressing beginning to lift should be addressed to maintain a sterile environment but is not an emergency.
D. Slight redness at the insertion site may indicate mild irritation or early signs of infection, but it does not require immediate intervention compared to the potential vascular or nerve compromise suggested by numbness and tingling.
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