A nurse is caring for a 2-day-old newborn who has not yet passed meconium and has had only one feeding since birth. The nurse understands that delayed feeding and failure to pass meconium can worsen neonatal hyperbilirubinemia. Which explanation best describes why early feeding and stooling are important in preventing elevated bilirubin levels in newborns?
- Feeding increases red blood cell production, which dilutes the concentration of unconjugated bilirubin in the bloodstream.
- Passing meconium eliminates excess glucuronyl transferase, which would otherwise convert conjugated bilirubin back to its unconjugated form.
- Early feeding stimulates the liver to produce more glucuronyl transferase, directly reducing bilirubin synthesis.
- Stooling removes bilirubin-rich meconium from the gut, and feeding helps clear beta-glucuronidase, reducing bilirubin reabsorption.