What is the most appropriate nursing intervention for an infant diagnosed with patent ductus arteriosus to prevent complications?

Choice A reason: Diuretics manage fluid overload in patent ductus arteriosus but are not the primary intervention. Respiratory distress from increased pulmonary flow is the main complication, requiring oxygen and monitoring. Diuretics are supportive, making this less critical than addressing immediate respiratory needs in infants. Choice B reason: Patent ductus arteriosus causes left-to-right shunting, increasing pulmonary blood flow and risking respiratory distress. Monitoring respiratory status and administering oxygen as needed prevent hypoxemia and support gas exchange, making this the most appropriate intervention to address the primary complication in infants with this condition. Choice C reason: Frequent feedings promote weight gain but do not address the primary complication of patent ductus arteriosus, which is pulmonary overcirculation leading to respiratory distress. Nutritional support is secondary to managing respiratory status, making this an incorrect primary intervention for preventing complications. Choice D reason: Chest physiotherapy enhances lung expansion but is not specific to patent ductus arteriosus complications, which primarily involve pulmonary congestion from shunting. Respiratory monitoring and oxygen therapy directly address hypoxemia, making physiotherapy a less appropriate intervention compared to managing acute respiratory needs.