A provider orders intravenous moxifloxacin (Avelox) for a patient who has sinusitis. Before administering the drug, the nurse will review this patient's chart for:
a. a history of asthma.
b. concurrent use of digoxin.
c. concurrent use of warfarin.
d. recent serum electrolyte levels.
ANS: D
Moxifloxacin prolongs the QT interval and poses a risk of serious dysrhythmias. Patients with hypokalemia have an increased risk, so serum electrolyte levels should be monitored. Having a history of asthma is not significant. Moxifloxacin does not alter digoxin or warfarin levels.
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