Abnormal jaundice in newborns is usually judged by the time of onset of jaundice, serum total bilirubin value, duration of jaundice, whether it recurs or not, and serum conjugated bilirubin, etc. Pathological jaundice is considered when any one of these abnormalities is present.
1. Time of onset of jaundice: Jaundice occurs within 24 hours after birth, which is generally considered abnormal.
2. Total serum bilirubin: Jaundice is considered abnormal if the total serum bilirubin value has reached the standard of the corresponding age and risk factors, or exceeds 95% of the hourly bilirubin curve, or the daily rise of bilirubin is more than 5mg/dl.
3. Duration of jaundice: Jaundice lasting more than 2 weeks in full-term infants and more than 4 weeks in preterm infants is considered abnormal.
4. recurrence of jaundice: jaundice is abnormal if jaundice recedes and recurs.
5. Serum-conjugated bilirubin: greater than 2mg/dl, consider jaundice abnormal.
Newborns with abnormal jaundice need to consult a doctor for professional diagnosis and formulation of appropriate treatment plan in order to avoid delaying the condition.