The nurse is to administer the patient's next dose of vancomycin at 9:30 a.m. What time will the nurse draw the patient's blood to check the trough vancomycin level?
8:30 a.m.
9:00 a.m.
10:00 a.m.
10:30 a.m.
The Correct Answer is B
Choice A reason: Drawing at 8:30 a.m., 60 minutes before, is too early; trough levels, taken just before the next dose, reflect minimum concentration, and this timing risks inaccurate results.
Choice B reason: At 9:00 a.m., 30 minutes before the 9:30 a.m. dose, the trough level accurately measures the lowest vancomycin concentration, ensuring therapeutic monitoring aligns with pharmacokinetics.
Choice C reason: Drawing at 10:00 a.m., after the dose, measures a post-infusion level, not the trough; this timing misses the minimum concentration critical for dosing adjustments.
Choice D reason: At 10:30 a.m., well after the dose, blood reflects peak or random levels, not the trough, skewing data needed to assess vancomycin’s therapeutic efficacy and safety.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is C
Explanation
Choice A reason: Rescheduling dismisses the patient’s fear; it delays therapy without addressing misconceptions, missing a chance to educate and proceed with migraine relief.
Choice B reason: Questioning prior explanation may shame the patient; it doesn’t clarify biofeedback’s non-invasive nature, failing to reduce anxiety about shocks.
Choice C reason: Explaining no shocks and describing biofeedback as monitoring reassures scientifically; it corrects fears, aligning with its role in stress-related migraine management.
Choice D reason: Vague reassurance lacks specificity; without addressing shocks, it’s less effective, as patients need clear, factual dispelling of their expressed concern.
Correct Answer is A
Explanation
Choice A reason: Zestril at 5 mg per tablet is common; strength is the dose per unit, and this matches typical labeling for hypertension management effectively.
Choice B reason: 10 mg is a Zestril strength but not assumed here; without label confirmation, 5 mg is the base unit from prior context, not this option.
Choice C reason: 15 mg isn’t standard for Zestril tablets; it’s a total dose possibility, not a per-tablet strength, mismatching typical medication packaging norms.
Choice D reason: 20 mg exists for Zestril but isn’t the default; 5 mg aligns with the supplied strength in earlier questions, making it the likely label.
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