A test result of indirect bilirubin 30 μmol/L is not normal. The normal range of indirect bilirubin is 1.7 to 10.2 μmol/L. Therefore, a test result of indirect bilirubin 30 μmol/L is considered significantly elevated. Indirect bilirubin of 30μmol/L may be caused by liver diseases such as chronic active hepatitis, acute jaundice hepatitis, acute hepatic necrosis, cirrhosis, etc.; blood diseases such as sepsis, hemolytic anemia, etc.; or long-term use of isoniazid, methyldopa, etc., which are prone to cause liver damage, resulting in elevated indirect bilirubin. If the test results of indirect bilirubin are abnormal, it is recommended to go to the regular hospital for consultation, after clarifying the cause of the disease, and then carry out targeted treatment or therapy under the guidance of the doctor.