QBANK At the onset of an acute myocardial infarction, a patient was placed on an intravenous vasodilator. Three days later, the patient had become short of

[DianaZ]

At the onset of an acute myocardial infarction, a patient was placed on an intravenous vasodilator. Three days later, the patient had become short of breath, cyanotic, and occasionally drifted in and out of consciousness. Arterial blood gas results revealed an oxygen saturation of 87% on room air. The arterial blood was chocolate-brown in color. On what drug was the patient most likely placed?

A. Adenosine
B. Digoxin
C. Glyceryl trinitrate
D. Nifedipine
E. Verapamil