Which of the following medications is the most common preoperative treatment to minimize preductal constriction until surgical correction of coarctation of the aorta can be achieved?

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Treatment of neonates with severe coarctation includes prostaglandin E1 to restore patency of the ductus arteriosus. These patients may also have significant ventricular dysfunction, congestive heart failure, and acidosis, requiring inotropes, diuresis, and ventilatory support.

Which of the Following Medications Is the Most Common Preoperative