<prompt> A term baby developed jaundice on 3rd day upto the thigh with normal stool and urine. Mothers blood group is O -ve and that of babies A ve. The cause of jaundice is -Rh incompatibilityPhysiological jaundiceExtrahepatic biliary atresiaSepsis  <response>: Ans. is b i.e., Physiological jaundice Physiological jaundice o Most neonates develop visible jaundice due to elevation of unconjugated bilirubin concentration during their first week. o This common condition is called physiological jaundice. o This pattern of hyperbilirubinemia has been classified into two functionally distinct periods ? 1. Phase one Last for 5 days in term infant with peak bilirubin levels to 12 mgdl. Last for 7 days in preterm infant with peak bilirubin levels to 15 mgdl. 2. Phase two There is decline to about 2 mgdl, which lasts for 2 weeks after which adult values are attained. 