<prompt> RDS in Neonate is due to deficiency of?SphingomyelinCeramideDipalmitoylAll of above  <response>: Ans. is c i.e., dipalmitoyl HMD Respiratory distress syndrome Primary seen in : PRETERM Baby of diabetic mother Multiple bih LSCS delivery Bih asphyxia Incidence in preterm inversely related to gestational age and bih weight. Primary cause - Surfactant deficiency leads to atelectatic lung. Major constituent of surfactant - la Dipalmitoyl phosphatidylcholine lecithin Phosphatidylglycerol A protein Cholesterol Synthesized and stored in type II alveolar cell. X-ray fine granuloreticular pattern with air bronchogram 