This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Pediatrics
Most common cause of respiratory distress after birth in first 24 hours is – 
Select and explain. 
A. Neonatal sepsis, B. Meconium aspiration, C. Bacterial pneumonia, D. Air embolism
B: Meconium aspiration
Answer: B: Meconium aspiration 
Explanation: Most common cause of respiratory distress in a term or post-term neonate —3 Meconium aspiration.
Most common cause of respiratory distress in a preterm infant —> hyaline membrane disease.