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Direct Bilirubin

Test Code



Testing performed on Beckman Coulter DxC 700 AU analyzing serum.

Test Utility

Used in the quantitative determination of direct bilirubin is used in the evaluation of liver and biliary disease.

Specimen Storage and Stability

Exposure to direct sunlight can decrease bilirubin in samples by 50% within one hour. When well protected from light, bilirubin in serum is stable for up to 3 days at 2-8C and for approximately three months when stored at -20C or colder.

Specimen Collection and Preparation

Serum sample, Gold Top or Tiger SST. Refrigerated, free from hemolysis, are recommended specimens. Protect specimen from light and assay as soon as possible.

Specimen Rejection

  • Improperly labeled

  • Specimen grossly

  • Hemolyzed uncentrifuged

Reference Ranges

0.03 - 0.18mg/dL


Monday - Saturday, 16 hours a day.

Result available after getting the specimen in 5 hours.

STAT results available within 2 hours of receipt in the Laboratory.

*NOTE: All Specimen Refrigerated (2-8°C) for 7 days only.


Vibra Health Laboratory

Phone: (248) 846-0663

1307 Allen Dr, Suite A, Troy, MI 48083

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