Neonatal Jaundice Flashcards
What is Jaundice
-yellow staining of the skin, sclera and mucous membrane that result from high levels of bilirubin in the circulation (hyperbillirubinaemia)
Risks associated with hyperbillirubinaemia
the unconjugated (fat soluble) bilirubin can cross the blood brain barrier and be deposited in the basal ganglia in the brain. Leading to billirubin encephalopathy and kernicterus
What is Bilirubin Encephalopathy and Kernicterus
BE - acute neurological dysfunction associated with hyperbillirubinemia
Kernicterus - pathological term, referring to the long term neurodevelopmental effects of BE (CP, LD, deafness)
Risk factors for developing jaundice
- gestation under 38 weeks
- exclusively breastfeeding
- visible jaundice in first 24 hours
- blood group incompatibility
- significant head bruising
Physiological Jaundice
affects babies in the first few days after birth. levels peak at day 5 and reduce by day 7, once feeding is established
Pathological Jaundice
- can develop in the first 24 hours
- persistence of jaundice for more than 14 days/10 days in preterm
- normally as a result of some underlying disease process
Why do all babies have a rise in unconjugated bilirubin after birth
- increased red cell breakdown
- reduced albumin levels
- bowel activity is decreased until feeding is established
What is Albumin
-Albumin is a protein made by your liver. Albumin helps keep fluid in your bloodstream so it doesn’t leak into other tissues.