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Test Code BILID.1 BILIRUBIN, DIRECT

Important Note

Note: If bilirubin is desired on infant ≤25 days old, order BILIRUBIN,NEONATAL, BILIN.1

Methodology

End-point Colorimetric (Dual Wavelength) 

Useful for evaluation of liver and biliary disease. An increased direct bilirubin occurs in both intrahepatic and extrahepatic biliary tract obstruction.

 

Specimen Requirements

Submit only 1 of the following specimens:

 

Preferred:

Serum

Serum Gel Tube

Container/Tube: Serum gel tube(s)
Specimen Volume: 1 mL (minimum volume: 0.5 mL) of serum

Collection Instructions:

  1. Protect specimen from light.
  2. Spin down within 4 hours of draw.
  3. Label specimen appropriately (serum).

 

Alternate:

Serum

Plain, Red-Top Tube

Container/Tube: Plain, red-top tube(s)
Specimen Volume: 1 mL (minimum volume: 0.5 mL) of serum

Collection Instructions:

  1. Protect specimen from light.
  2. Spin down within 4 hours of draw.
  3. Label specimen appropriately (serum).

 

Alternate:

Plasma

Container/Tube: Green-top (lithium heparin) tube(s)

Specimen Volume: 1 mL (minimum volume: 0.5 mL) of plasma

Collection Instructions:

  1. Protect specimen from light.
  2. Spin down within 4 hours of draw.
  3. Label specimen appropriately (plasma).

Day(s) Test Set Up

Monday through Sunday

Reference Values

0.0-0.4 mg/dL

Performing Laboratory

Logan Health Medical Center-Chemistry

Test Classification and CPT Coding

82248

Specimen Transport Temperature

Refrigerate