This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Respiratory System, Subject name: Pediatrics
Bag and mask ventilation is contraindicated in all except? 
Select and explain. 
A. Transient tachypnea of newborn, B. Tracheo - esophageal fistula, C. Diaphragmatic hernia, D. Meconium aspiration syndrome
A: Transient tachypnea of newborn
Answer: A: Transient tachypnea of newborn 
Explanation: Ans. is 'a' i.e., Transient tachypnea of newborn Bag and mask ventilation is contraindicated in* Diaphragmatic hernia,* Tracheo-esophageal fistula and* Meconium aspiration syndrome.