Jaundice is a visual manifestation of increased levels of bilirubin in the blood. In full-term newborns it appears at a bilirubin level of 85 µmol/l; in premature infants - more than 120 µmol/l.
Causes of indirect hyperbilirubinemia:
- Immune hemolysis (P 55), non-immune (P 58)
- Conjugation disorders (P 59)
- Impaired albumin-binding ability of blood (P 59.8)
- Increased enterohepatic circulation (P 58.5, P76)
Degrees of visualization of jaundice according to the Cramer scale:
- I degree – jaundice of the face and neck (80 µmol/l)
- II degree – up to the level of the navel (150 µml/l)
- III degree – up to the level of the knees (200 µmol/l)
- IV degree – jaundice of the face, torso, extremities except palms and soles (300 µmol/l)
- V degree - all yellow (400 µmol/l)
The Cramer score cannot be used if the child is receiving phototherapy. In premature and hypotrophic children, the degree of visualization of hyperbilirubinemia is less pronounced.
Examination:
Required:
- bilirubin, fractions
- blood type, Rh factor of mother and child
- complete blood count + reticulocytes + normoblasts
Additional:
- Coombs test (if hemolytic disease of the newborn is suspected) to detect immune antibodies
- AST, ALT (if hepatitis is suspected)
Care:
- optimal temperature regime (child hypothermia leads to a decrease in glucuronyl transferase activity)
Feeding:
- continue breastfeeding (hemolytic disease of the newborn is not a contraindication). If the child’s condition is serious, feeding expressed breast milk from a syringe, cup, etc.
- if a newborn is scheduled for an exchange blood transfusion (RTB), the child does not feed during the preparation period for it
- If the suspected diagnosis is breastfeeding jaundice, more frequent breastfeeding is required.
Therapeutic tactics for indirect hyperb