A client is seen in the emergency department with a heart failure exacerbation due to noncompliance with medications and fluid restrictions. Which key diagnostic result should the nurse assess to determine the severity of the client's heart failure exacerbation?
Blood urea nitrogen (BUN)
Troponin
B-type natriuretic peptide (BNP)
Electrocardiogram
The Correct Answer is C
A. Elevated BUN can indicate kidney dysfunction but is not specific for assessing heart failure severity.
B. Elevated troponin levels indicate myocardial injury or infarction, not heart failure exacerbation.
C. B-type natriuretic peptide (BNP) levels are directly correlated with the severity of heart failure, as they are released in response to ventricular volume expansion and pressure overload.
D. An electrocardiogram (ECG) can show arrhythmias or ischemia but does not directly measure heart failure severity.
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Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is D
Explanation
A. NSTEMI would present with elevated troponin levels indicating myocardial injury, which is not the case here.
B. Stable angina occurs predictably with exertion and is relieved by rest or nitroglycerin.
C. STEMI is characterized by ST-elevation on the ECG and elevated troponin levels, indicating significant myocardial injury.
D. Unstable angina presents with chest pain that occurs at rest or with minimal exertion and is not predictable. The presence of T-wave inversion and normal troponin levels is consistent with this diagnosis.
Correct Answer is C
Explanation
A. Elevated BUN can indicate kidney dysfunction but is not specific for assessing heart failure severity.
B. Elevated troponin levels indicate myocardial injury or infarction, not heart failure exacerbation.
C. B-type natriuretic peptide (BNP) levels are directly correlated with the severity of heart failure, as they are released in response to ventricular volume expansion and pressure overload.
D. An electrocardiogram (ECG) can show arrhythmias or ischemia but does not directly measure heart failure severity.
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