Congenital indirecthyperbilirubinemiaoccurs due to the relative deficiency or absence of the primary conjugating enzyme uridinediphosphate-glucuronyltransferase.The enzyme UDP glucuronyltransferase is responsible for the conjugation of bilirubin in liver. The enzyme is also essential for transport of many other substrates including drugs, hormones, toxins and neurotransmitters. Thus, anaestheti...