Laboratory Services

Bilirubin, Direct

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Updated Test Information:

Test Description
Bilirubin, Direct
Synonym(s)
DBILI, Direct Bilirubin, Conjugated Bilirubin
Test ID
DBIL
General Information
Measurement of direct bilirubin is usually not necessary when the total bilirubin is <1.2 mg/dL.
Specimen Type
Serum
Alternate Specimen Type
Red, Li-heparin plasma
Specimen Requirements
SST
Specimen Collection / Processing Instructions
SST - Separate serum or plasma from cells within 45 minutes of collection. If a red-top tube or green-top tube is used, transfer separated serum or plasma to a plastic transport tube.
Additional Processing Details
Separate serum or plasma from cells within 45 minutes of collection. If a red-top tube or green-top tube is used, transfer separated serum or plasma to a plastic transport tube.
Stability
2 days at 20-25 ˚C
7 days at 2-8 ˚C
6 months at -20 ˚C
Unacceptable Specimen Conditions
Hemolyzed or lipemic specimens
Methodology
Colorimetric
Estimated TAT
0-2 days
Testing Schedule
Monday-Saturday
CPT Code(s)
82248
Minimum Sample Volume
Preferred volume 1mL
Pediatric Min. Volume (if applicable)
500 uL
Reference Range
0.0-0.3 mg/dL
Performing Lab
Incyte Diagnostics
LOINC Code(s)
1968-7