Test Code BILTDI Bilirubin, Fractionated (Total, Direct, Indirect)
Test Method
Direct: Timed Endpoint, Diazo;Beckman DXC600
Total: Timed Endpoint, Diazo; Beckman DXC600
Indirect: Calculated
Specimen Requirement
0.5 mL plasma or serum is required.
Additional Specimen Collection Information
Collect blood in a lithium heparin, green-top or red-top tube. PST and SST (gel tubes) are acceptable. Serum or plasma should be separated from contact with the cells within 2 hours of collection. Specimens not centrifuged within 4 hours of collection may be rejected. Refrigerate the specimen if unable to assay within 8 hours of collection. Hemolyzed specimens are not acceptable. Samples with >3+ lipemia must be cleared prior to analysis. Protect from light.
Performance
Testing is performed Monday through Sunday.
Routine orders: Typically completed within 4 hours after the specimen arrives at the testing site.
STAT orders: Typically completed within 30 minutes after the specimen arrives at the testing site.
CPT Code Information
82247 Chemistry: Bilirubin; total
82248 Chemistry: Bilirubin; direct
Reference Value
≥ 5 Days of Age:
- Total: 0.3-1.2 mg.dL
- Direct: 0.0-0.2 mg/dL
- Indirect: 0.0-0.8 mg/dL
Infant:
Premature:
Values in premature infants may be higher than in full term infants amd may reach peak concentrations at later times.
Full Term:
- Total Birth-1 Day: < 5.8 mg.dL
- Total 1-3 Days: < 8.2 mg/dL
- Total 3-5 Days: < 11.7 mg/dL
- Critical Value: Total Bilirubin (Infant-1 Month): ≥ 16.0 mg/dL