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
Loss of pulmonary surfactant in premature infant leads to: 
Select and explain. 
A. Pulmonary edema, B. Collapse of alveoli, C. Elastic recoil of lungs, D. All
D: All
Answer: D: All 
Explanation: d. All(Ref: Nelson's 20/e p 850-857, Ghai 8/e p 169-170)Surfactant deficiency is the primary cause of RDS; Alveolar atelectasis, hyaline membrane formation & interstitial edema are seen in RDS.