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