Bilirubin direct
A bilirubin blood test measures the levels of bilirubin in your blood. Bilirubin is a yellowish substance made during your body's normal process of breaking down old red blood cells. Bilirubin is found in bile, a fluid your liver makes to help you digest food.
A bilirubin blood test may be used to check the health of your liver, look for the cause of jaundice, or determine how well a treatment is working.
Source: MedlinePlus, U.S. National Library of Medicine
Normal range
- 1 y+
- 0–0.3 mg/dL
Ranges from Mayo Clinic Laboratories (Pediatric Test Catalog).
What an abnormal result can be associated with
- A high result
- Hyperbilirubinemia
Associations from LOINC2HPO (Human Phenotype Ontology). This is reference information, not a diagnosis — only a clinician can interpret your result in context.
Details
- Sample
- Serum or plasma · LOINC
- Part of
- Bilirubin direct and total panel · Hepatic function panel
- Listed under
- Bile Duct Cancer · Bile Duct Diseases · Cirrhosis · Gallbladder Cancer · Hemochromatosis · Hepatitis · Hepatitis A · Hepatitis B · Hepatitis C · Jaundice · Liver Cancer · Liver Diseases
- Code
- LOINC 1968-7 · mg/dL
- Also known as
- Alb, Bilirub Direct, Bc, Bilirub Conj, Delta bilirubin