Question: what is the difference between direct and total bilirubin?
Answer: 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.