This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Miscellaneous, Subject name: Surgery
Two weeks after birth, a baby has persistent tachypnea, tachycardia, diaphoresis, and cyanosis. Workup reveals a patent ductus arteriosus. This can be closed with the use of: 
Select and explain. 
A. Indomethacin, B. Acetaminophen, C. Aspirin, D. Cyclosporine
A: Indomethacin
Answer: A: Indomethacin 
Explanation: The nonsteroidal anti-inflammatory drug, indomethacin, is the drug of choice for closure of a patient ductus arteriosus in a premature infant with an isolated patient ductus arteriosus. For complex cardiac anomalies, which require a patient ductus arteriosus to sustain life until corrective surgery can be done, prostaglandin E1 can be administered to keep the ductus arteriosus open. The other choices are not indicated in patient ductus arteriosus.