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Test Code LAB50 Bilirubin, Total, Plasma

Performing Laboratory

Barnes-Jewish Hospital Laboratory

Methodology

Colorimetric (Diazo Jendrassik-Grof)

Literature Reference:

Package insert: Total Bilirubin reagent. Roche Corporation BLT3, 01/2020.

Specimen Requirements

Note: This test is also available as part of LAB17 Comprehensive Metabolic Panel (CMP) and LAB20 Hepatic Function Panel. 

 

Specimen Type: Plasma

Container/Tube: Mint-green top (lithium heparin)

Specimen Volume: Full tube

 

Day(s) Test Set Up

Monday through Sunday

Turnaround Time:
STAT: 1 hour after receipt in laboratory 
Routine: 2 to 4 hours after receipt in laboratory

Test Classification and CPT Coding

82247

Reference Values

0 – 24 hrs: ≤ 5.0 mg/dL

> 24 hrs - 48 hrs: ≤ 8.0 mg/dL

> 48 hrs - 120 hrs: ≤ 12.0 mg/dL

> 5 days to 2 wks: ≤ 8.0 mg/dL

> 2 wks - 1 month: ≤ 5.0 mg/dL

> 1 month and up: 0.1 –  1.2 mg/dL

Literature Reference:

Rifai N, Horvath AR, Wittwer AT eds: Textbook of Clinical Chemistry and Molecular Diagnostics 6th ed: Chapter 38, p. 719, Elsevier, St. Louis, MO 2018.

Specimen Transport Temperature

Ambient

Additional Information

For BJH Laboratory Use Only
Alternate Tube:

1 dark green-top (lithium heparin) tube
1 red-top tube

Laboratory Processing Instructions:

Test performed in BJH Core Lab.  Processed by automated line for delivery to the Cobas 8000. Completed specimens are stored refrigerated for 5 days. 

Test performed in South County Siteman and Ambulatory Cancer Building Lab.  Centrifuge sample and deliver to the Cobas.  Completed specimens are stored refrigerated for 5 days. 

Special Instructions

See Analyte Stability Chart under General Information for a complete list.

LOINC Code Information

Name LOINC Code
Bilirubin, Total 1975-2