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Test Code BILID Bilirubin, Direct, Plasma or Serum

Additional Codes

  • Expanse Test Name:Bilirubin,Direct,S
  • Medinet Ref Code: BILID
  • OV Code:CHEM*BILID

Performing Laboratory

St. Lukes Hospital Laboratory

Methodology

Doumas Reference Method/Modified Diazo

Specimen Requirements

Specimens are stable for 5 days at 4C

 

Bilirubin is extremely photosensitive. Care should be taken to protect sample from both daylight and fluorescent light to avoid degredation.

Submit only 1 of the following specimens:
 
Plasma
Draw blood in a green-top (lithium heparin) plasma gel tube(s). Spin down and send 1 mL of lithium heparin plasma refrigerated. Avoid hemolysis, lipemia, direct sunlight, or prolonged exposure to fluorescent light.
Note:  1. Indicate plasma on request form.
2. Label specimen appropriately (plasma).
 
Serum
Draw blood in a serum gel tube(s). Spin down and send 1 mL of serum refrigerated. Avoid hemolysis, lipemia, direct sunlight, or prolonged exposure to fluorescent light.
Note:  1. Indicate serum on request form.
2. Label specimen appropriately (serum).

 

 

Unspun specimens must be transported at ambient temperature and arrive to the laboratory within one hour of draw.

Reference Values

0.0-0.2 mg/dL

Interfering Substances:

Hemoglobin >50 mg/dL will falsely lower direct bilirubin. Lipemia >200 mg/dL interferes with testing.

Day(s) Test Set Up

Monday through Sunday

Test Classification and CPT Coding

82248