Unconjugated bilirubin can be reabsorbed by the intestinal mucosa back into the circulation, a process referred to as enterohepatic circulation. Lack of intestinal bacteria also places the infant ...

and/or delayed bilirubin elimination (hepatic and intestinal), as well as by a unique neonatal phenomenon of enterohepatic reabsorption of bilirubin. Bilirubin and carbon monoxide are the major ...