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.
Minimum Sample Volume
Preferred volume 1mL
Pediatric Min. Volume (if applicable)
500 uL
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
Reference Range
0.0-0.3 mg/dL
Performing Lab
Incyte Diagnostics
LOINC Code(s)
1968-7