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 3 day old preterm neonate with breathing difficulty from birth was admitted in the NICU. A chest X ray was done which is shown below. Which of the following disorders is the neonate apparently suffering from? 
Select and explain. 
A. Respiratory distress syndrome, B. Neonatal pneumonia, C. Transient tachypnea of the newborn, D. None of these
A: Respiratory distress syndrome
Answer: A: Respiratory distress syndrome 
Explanation: Ans. A. Respiratory Distress SyndromeThis chest X ray above reveals a picture consistent with diffuse reticulo granular opacities in both lung fields. Air bronchogram can also be seen. This chest x ray is typical of respiratory distress syndrome (hyaline membrane disease). Chest X ray in neonatal pneumonia can be non-specific revealing infiltrates, consolidations, and sometimes even pleural effusion(s). Transient tachypnea of the newborn is a benign disorder in which the chest X ray classically shows increased vascular markings and fluid in the interlobar fissures.