what is a normal bilirubin level for adults
Bilirubin test results are expressed as direct, indirect or total bilirubin. Total is a combination of direct and indirect bilirubin. Typically, you'll get results for direct and total bilirubin.Normal results for a bilirubin test are 1.2 milligrams per deciliter (mg/dL) of total bilirubin for adults, and usually 1 mg/dL for those under 18.Normal results for direct bilirubin are generally 0.3 mg/dL. These results may vary slightly from laboratory to laboratory.ne common, and harmless, cause of elevated bilirubin is Gilbert's syndrome, a deficiency in an enzyme that helps break down bilirubin. Your doctor may order further tests to investigate your condition. Bilirubin test results also may be used to monitor the progression of certain conditions such as jaundice.