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HelpBilirubin, Total and Direct
Additional Codes
LAB168
Performing Laboratory
MBMC Main Laboratory
Methodology
Diazo (colorimetric)
Specimen Requirements
Note: This test is also available as part of Comprehensive Metabolic Profile and Hepatic Function Panel. See Common Panel Test Combinations in Special Instructions to avoid duplicate test requests when multiple panels are ordered.
Preferred Specimen Type: Plasma
Container/Tube: Mint-green top (lithium heparin gel)
Specimen Volume: Full tube
Alternative Specimen type: Serum
Alternative Container/tube: Gold, Serum gel
Alternative Specimen volume: Full tube
Specimen Transport Temperature
Ambient
Day(s) Test Set Up
Monday through Sunday
Turnaround Time:
STAT: 1 hour after receipt in laboratory
Routine: within 4 hours
Reference Values
See individual test listings.
Normal Ranges < 6 months old:
Total Bilirubin 0.1-1.2 mg/dL
Direct Bilirubin 0.1-0.3 mg/dL
Bilirubin Direct/Total ratio </= 0.2 (only reported when Total Bilirubin is > 1.0 mg/dL)
Test Classification and CPT Coding
See individual test listings.
Stability
5 days Refrigerated