Indirect bilirubin 18.2 Liver damage is generally serious. 1. Indirect bilirubin is also known as unconjugated bilirubin. Indirect bilirubin and direct bilirubin make up total bilirubin. After the destruction of red blood cells, bilirubin in hemoglobin is not synthesized by the liver, which is indirect bilirubin. 2. The reference value of indirect bilirubin ranges from 1.7 to 10.2 μmoL/L. If the value is high, the common causes include liver diseases, such as chronic active hepatitis and cirrhosis. Severe burns, sepsis, lead poisoning, and medicated jaundice can cause elevated indirect bilirubin, and hemolytic jaundice and hepatocellular jaundice can also cause elevated indirect bilirubin. Patients need to clarify the specific cause of the disease and standardize the treatment under the guidance of the doctor, and should not self-medicate or believe in traditional Chinese medicine.