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HelpTest Code Tbili Bilirubin Total, Blood
Aliases
Total Bilirubin
Patient Preparation
No special patient preparation required
Special Collection Instructions
Protect neonatal specimens from Light
Collection Method
Venous collection
Minimum Volume
- Adults: 0.8ml
- Pediatric: 0.5mL
Container
Lt Green / Plasma Separator / Lithium Heparin
Preferred Specimen
Light Green Top (lithium heparin) plasma
Acceptable Specimens
Serum:
- Gold Top SST
- Red Top
Plasma:
- Light Geen Top (lithium heparin)
Reference or Target Ranges
| 0 – 24 hours | < 8.0 mg/dL |
| 24 – 72 hours | < 12.0 mg/dL |
| 72 – 120 hours | < 16.0 mg/dL |
| > 120 hours | 0.3-1.2 mg/dL |
Reportable Units
mg/dL
Critical Value
| 0 – 24 hours | > 11.0 mg/dL |
| 24 – 72 hours | >14.0 mg/dL |
| 72 – 120 hours | >19.0 mg/dL |
| >120 hours | >15.0 mg/dL |
Reasons for Rejection
| Hemolysis Threshold | 500 mg/dL |
| Icterus Threshold | N/A |
| Lipemia Threshold | 700 mg/dL |
| Other | QNS, contaminated, improperly Labeled, improper specimen type, not protected from light |
Specimen Stability
| Ambient | 1 day |
| Refrigerated (4°C to 8°C) | 7 days |
| Frozen(-40°C to 0°C) | 6 months |
Performance Information
| Days and Time Performed | 24/7 |
| Expected Turn Around Time |
Stat: 1 hour Routine: 4 hours |
| Stat Availability | Yes |
| Performing Bench | UH Chemistry |
| Methodology/Method Description | Siemens Atellica – Colorimetric |
Special Handling
Protect from light
Additional Information/Important Notes
Total bilirubin is a sum of the direct (conjugated) and indirect (unconjugated) values.
CPT Codes
82247