A client is admitted to the critical care unit (CCU) with a diagnosis of cardiomyopathy. When reviewing the client's most recent laboratory results, the nurse should prioritize assessment of which of the following lab results?
White blood cell differential
BUN
Sodium
ALT, AST and Bilirubin
The Correct Answer is B
A. White blood cell differential is important for infection monitoring but is not a primary concern in cardiomyopathy.
B. BUN reflects renal perfusion and function, which can be compromised in cardiomyopathy due to decreased cardiac output. Monitoring BUN helps detect early signs of renal impairment from poor cardiac output.
C. Sodium levels are important but less immediately indicative of cardiomyopathy complications than renal function.
D. Liver function tests (ALT, AST, bilirubin) can be affected in severe heart failure, but renal function is typically prioritized first in acute cardiomyopathy management.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is C
Explanation
A. Activity may be restricted initially to prevent lead displacement; early ambulation is not the primary focus immediately after implantation.
B. A quiet environment is not directly related to pacemaker function or post-procedure safety.
C. Continuous assessment of heart rate, rhythm, and vital signs is critical to ensure the pacemaker is functioning properly and to detect complications such as arrhythmias or device malfunction.
D. Routine anticoagulants are not indicated solely for pacemaker implantation unless there is another underlying condition requiring them.
Correct Answer is B
Explanation
A. Dopamine can increase cardiac output and BP but may worsen hypovolemia if the patient is volume-depleted.
B. Low CVP and PAP indicate hypovolemia; fluid replacement is the priority to restore preload, improve cardiac output, and stabilize blood pressure.
C. Nitroprusside sodium is a vasodilator and would further lower BP, which is contraindicated in this hypotensive, hypovolemic patient.
D. Furosemide is a diuretic and would worsen hypotension and low preload; it is not appropriate in this situation.
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