Find Locations
For hours, walk-ins and appointments.Synonyms
- Bilirubin, Total, Conjugated, and Unconjugated
Test Includes
Bilirubin, conjugated (direct); bilirubin, indirect; bilirubin, total
Expected Turnaround Time
Within 1 day
Turnaround time is defined as the usual number of days from the date of pickup of a specimen for testing to when the result is released to the ordering provider. In some cases, additional time should be allowed for additional confirmatory or additional reflex tests. Testing schedules may vary.
Related Documents
Specimen Requirements
Specimen
Serum (preferred) or plasma
Volume
3 mL
Minimum Volume
1 mL (Note: This volume does not allow for repeat testing.)
Container
Red-top tube, gel-barrier tube, or green-top (lithium heparin) tube
Collection
Separate serum or plasma from cells within 45 minutes of collection.
Storage Instructions
Refrigerate
Stability Requirements
Temperature | Period |
|---|---|
Room temperature | 2 days |
Refrigerated | 3 days |
Frozen | 14 days |
Freeze/thaw cycles | Stable x2 |
Causes for Rejection
Severe hemolysis; improper labeling; severe lipemia
Test Details
Use
Liver and biliary tests are useful in the differential diagnosis of jaundice from bilirubin overproduction (hemolysis), decreased uptake (Gilbert disease), decreased conjugation (hepatocellular disease, familial, drug-induced, pregnancy; obstructive bile duct disease).
Methodology
Colorimetric
LOINC® Map
| Order Code | Order Code Name | Order Loinc | Result Code | Result Code Name | UofM | Result LOINC |
|---|---|---|---|---|---|---|
| 001214 | Bilirubin, Total/Direct, Serum | 34543-9 | 001099 | Bilirubin, Total | mg/dL | 1975-2 |
| 001214 | Bilirubin, Total/Direct, Serum | 34543-9 | 001222 | Bilirubin, Direct | mg/dL | 1968-7 |
| 001214 | Bilirubin, Total/Direct, Serum | 34543-9 | 011247 | Bilirubin, Indirect | mg/dL | 1971-1 |
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