This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: New Born Infants, Subject name: Pediatrics
A newborn was given a drug in neonatal ICU, but then was found in respiratory distress. The likely drug responsible is: 
Select and explain. 
A. Morphine, B. Naloxone, C. Salbutamol, D. Soda-bicarb
A: Morphine
Answer: A: Morphine 
Explanation: a. Morphine(Ref: AAP guidelines 2015)Causes of respiratory depression in neonateIntrapartum asphyxia (most common causeQDrugs: Morphine anestheticsSepsisPrematurity: CNS immaturity, surfactant deficiencyRespiratory: Diaphragmatic hernia, obstructive lesionsCNS abnormalities: Malformation, trauma, myopathy