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HelpTest Code BILUR Bilirubin, Random, Urine
Shipping Instructions
Ship specimen in amber vial to protect from light.
Specimen Required
Supplies: Sarstedt 5 mL Aliquot Tube (Amber) (T915)
Container/Tube: Amber vial
Specimen Volume: 5 mL
Collection Instructions: Collect a random urine specimen.
Useful For
Limited use in screening of patients for liver disease
Method Name
Colorimetric
Reporting Name
Bilirubin, Random, USpecimen Type
UrineSpecimen Minimum Volume
1 mL
Specimen Stability Information
| Specimen Type | Temperature | Time | Special Container |
|---|---|---|---|
| Urine | Refrigerated (preferred) | 7 days | LIGHT PROTECTED |
| Frozen | 90 days | LIGHT PROTECTED |
Reject Due To
No specimen should be rejected.Clinical Information
Bilirubin is primarily derived from metabolism of hemoglobin. Only conjugated bilirubin is excreted into the urine and normally only trace amounts can be detected in urine. Elevated urinary bilirubin occurs in patients with obstructive jaundice or jaundice due to hepatocellular disease or injury. However, urine bilirubin is relatively insensitive for detection of liver disease. Hyperbilirubinemia due to hemolysis is principally due to unconjugated bilirubin, and therefore does not result in increased urinary bilirubin.
Reference Values
Negative
Interpretation
Elevated urinary bilirubin is suggestive of hepatocellular disease or post-hepatic biliary obstruction.
Specimen Retention Time
2 DaysPerforming Laboratory
Mayo Clinic Laboratories in Rochester
Test Classification
This test has been cleared, approved, or is exempt by the US Food and Drug Administration and is used per manufacturer's instructions. Performance characteristics were verified by Mayo Clinic in a manner consistent with CLIA requirements.CPT Code Information
81002
LOINC Code Information
| Test ID | Test Order Name | Order LOINC Value |
|---|---|---|
| BILUR | Bilirubin, Random, U | 5770-3 |
| Result ID | Test Result Name | Result LOINC Value |
|---|---|---|
| BILUR | Bilirubin, Random, U | 5770-3 |
Day(s) Performed
Monday through Sunday