ACCNS-AG Adult-Gerontology Acute Care Clinical Nurse Specialist Certification

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A 70-year-old patient on warfarin for atrial fibrillation is admitted for pneumonia. The patient develops QTc prolongation (QTc 520 ms) on the cardiac monitor. Which antibiotic should the CNS recognize as most likely contributing to QT prolongation?

Amoxicillin-clavulanate Azithromycin Cephalexin Trimethoprim-sulfamethoxazole

Correct Answer:

Azithromycin

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