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MCQ 24

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A 67-year-old man presents to the clinic for a follow-up appointment after being treated for an ST-elevation myocardial infarction. He developed ventricular arrhythmia while he was admitted to the intensive care unit and was twice defibrillated and received an amiodarone infusion. The patient also has mild persistent asthma and is on albuterol and fluticasone. He also just completed a 5-day course of oral azithromycin for community-acquired pneumonia. He is concerned about the bluish discoloration of his lips that was first noticed by his wife a few days ago. Which of the patient's recent medications is mot likely to have caused this clinical condition?
A. Albuterol
B. Fluticasone
C. Azithromycin
D. Amiodarone
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