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Test Code Billings Clinic: 4081 Bilirubin, Direct, Plasma

Performing Laboratory

Billings Clinic Laboratory: Chemistry

Useful For

Evaluation of jaundice and liver functions

Methodology

Diazo reaction

Specimen Requirements

Submit only 1 of the following specimens:

Serum or plasma should be physically separated from cells as soon as possible with a maximum limit of two hours from the time of collection.

 

Wrap specimen in foil to protect from light.

 

Plasma

  • Draw blood in a green-top (lithium heparin) tube(s).
  • Spin down and send 0.5 mL of heparinized plasma frozen.

 

Serum

  • Draw blood in a plain, red-top tube(s) or a serum gel tube(s).
  • Spin down and send 0.5 mL of serum frozen

 

Storage/Stability

Specimen Type Temperature Time
Plasma, Serum Refrigerated 5 days
  Frozen (preferred) 3 months

 

Reject Due To

  • Specimens not protected from light

Reference Values

0 - 31 days                     0.00 - 0.50 mg/dL

1 month - 17 years        0.00 - 0.10 mg/dL

>17 years                       0.05 - 0.27 mg/dL

Day(s) Test Set Up

Daily

Test Classification and CPT Coding

82248 - Bilirubin, direct

LOINC Code Information

Reporting Name LOINC Code
Bilirubin, Direct 15152-2