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Test Code Billings Clinic: 4145 Bilirubin Panel

Performing Laboratory

Billings Clinic Laboratory: Chemistry

Useful For

  • Assessing liver function
  • Evaluating a wide range of diseases affecting the production, uptake, storage, metabolism, or excretion of bilirubin
  • Monitoring the efficacy of neonatal phototherapy

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

Reference Values

See individual test listings for reference values.

 

Bilirubin, Indirect: No established reference ranges

Day(s) Test Set Up

Daily

Test Classification and CPT Coding

82247 - Bilirubin, total
82248 - Bilirubin, direct

LOINC Code Information

Reporting Name LOINC Code
Bilirubin , Total 1975-2
Bilirubin, Direct 15152-2
Bilirubin, Indirect 1971-1

 

Profile/Testing Information

Profile Information:
Bilirubin, Direct Bilirubin, Total
Bilirubin, Indirect