Bilirubin is divided into total bilirubin (STB), conjugated bilirubin (CB), and unconjugated bilirubin (UCB). STB is harmless when it is in the range of 3.4 to 17.1 μmol/L, CB is in the range of 0 to 6.8 μmol/L, and UCB is in the range of 1.7 to 10.2 μmol/L.
1. When patients suffer from occult jaundice (subclinical jaundice), STB is between 17.1 and 34.2 μmol/L. The STB for mild, moderate and severe jaundice is 34.2 to 171 μmol/L, 171 to 342 μmol/L, >342 μmol/L, respectively.
2. Hemolytic jaundice is usually STB less than 85.5 μmol/L, STB increase with UCB obvious increase suggests hemolytic jaundice; STB, CB, UCB increase also suggests hepatocellular jaundice; STB increase with CB obvious increase is obstructive jaundice, complete obstructive jaundice is usually STB more than 342 μmol/L, incomplete obstructive jaundice is STB in the range of 171-265 μmol/L. In incomplete obstructive jaundice, the STB is between 171 and 265 μmol/L.
In case of elevated bilirubin, it is recommended to consult a doctor in time to clarify the cause of the disease under the guidance of a specialized physician.