Test Overview
Colorimetric (Vanadate Oxidation)
Liver function test useful in the diagnosis of jaundice due to liver disease, hemolytic anemia, and ABO/Rh incompatability.
DIRECT BILIRUBIN: < 0.3 mg/dL. TOTAL BILIRUBIN: 1-11 years: 0.2 - 1.0 mg/dL; 12-150 years: 0.2 - 1.2 mg/dL
* Reference ranges may change over time. Please refer to the original patient report when evaluating results.
Test Details
4 hours
- Bilirubin, Direct
- Bilirubin, Indirect
STAT requests for this test will be performed on a STAT basis (supervisory staff approval is not required).
Specimen Requirements
Collect specimen in an SST tube. Centrifuge, aliquot serum into a plastic vial and refrigerate. Protect specimen from light (place in brown plastic bag or aliquot into brown tube). See Neonatal Bilirubin handbook entry for neonates (<1 year old): Neonatal Bilirubin, Fractions (NBILI) instead of Total Bilirubin (TBIL) is recommended for neonates < 14 days old.
Protect specimen from light.
Red top or Green top (sodium or lithium heparin) tube. [rev 11/09]
0.5 mL serum
0.25 mL serum
Additional Information
Test includes direct bilirubin, total bilirubin, and indirect bilirubin (calculated).
Testing for neonates (NDBIL, NIBIL, NTBIL) less than 1 yr old will be performed on the diazo-based method. see order group NBILI for patients less than 1 yr old.