What is the priority nursing intervention for a newborn infant diagnosed with transposition of the great vessels?

A. Preparing for immediate surgery is necessary, but the priority intervention is to ensure adequate oxygenation and blood flow through the ductus arteriosus before surgery can be performed. B. Initiating feeding through a nasogastric tube is not a priority for an infant with this condition, as their immediate need is to address the circulatory issue rather than feeding. C. Administering oxygen via nasal cannula may provide some relief but is not sufficient as a standalone intervention for transposition of the great vessels, which requires maintaining ductal patency to allow mixing of oxygenated and deoxygenated blood. D. Administering prostaglandin E1 (PGE1) is the priority intervention, as it helps maintain patency of the ductus arteriosus, allowing for temporary stabilization of the infant’s condition until surgical intervention can be performed.