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 lowering BP to 120/80 may be an ultimate goal, it is not the initial target in a hypertensive emergency.
B. Rapid reduction in blood pressure can cause hypoperfusion of vital organs such as the brain, heart, and kidneys, leading to ischemic injury. The aim is to reduce the BP gradually to prevent these complications.
C. IV antihypertensive medications generally have a rapid onset, not a slow one.
D. While gradual reduction is important, it is not done to allow rest but to protect organ perfusion.
Correct Answer is D
Explanation
A. Documentation of waveform values is important but does not directly enhance patient safety during monitoring.
B. Limiting the pressure tubing length can help maintain accuracy, but it is not the primary safety measure.
C. Zero referencing is crucial for accurate readings, but it must be done in conjunction with ensuring alarms are active.
D. Ensuring that alarm limits are turned on and appropriately set is the best safety measure to immediately alert the nurse to any critical changes in the patient's status.
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