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HelpTest Code BILTDI Bilirubin, Fractionated (Total, Direct, Indirect) LAB168
Performing Laboratory
UnityPoint The Finley Hospital
Test Method
Direct: Timed Endpoint, Diazo; Roche cobas Pro
Total: Timed Endpoint, Diazo; Roche cobas Pro
Indirect: Calculated
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.
Specimen Requirement
- Lithium heparin plasma (green) is the specimen of choice. 0.5mL.
- Serum (red/gold) and EDTA plasma (purple) are also acceptable sample types.
- It is recommended that the serum or plasma be separated from contact with cells within 2 hours from time of collection.
- Bilirubin specimens are stable for 24 hours at 20-25°C, 7 days at 4-8°C, and 6 months at -20°C.
- Protect sample from light if immediate analysis is not possible.
CPT Code Information
82247 Chemistry: Bilirubin; total
82248 Chemistry: Bilirubin; direct
Reference Value
Total Blirubin:
| full term birth to 24 hrs: | < 5.8 mg/dL5 |
| full term 24 - 48 hrs: | < 8.2 mg/dL5 |
| full term 2-5 days: | < 11.7 mg/dL5 |
| > 5 days to adult: | 0.3 - 1.2 mg/dL6 |
| Critical Value: | |
| infant < 1 month: | ≥ 16.0 mg/dL |
Direct Bilirubin:
Adult serum or plasma: 0.0-0.3 mg/dL.