C-Peptide, 24-Hour Urine
Test Code
94263
84681
In-home collection is not available in your area through Quest Mobile.
Clinical Significance
C-Peptide, 24-Hour Urine - Use to detect insulin secretion. Do not use to diagnose diabetes mellitus.
Test Resources
None found for this test
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Please visit our Clinical Education Center to stay informed on any future publications, webinars, or other education opportunities.
Test Details
Creatinine
CPT code 81050 may be added at an additional charge for volume measurement
CPT code 81050 may be added at an additional charge for volume measurement
Methodology
Quantitative Chemiluminescent Immunoassay
Reference Range(s)
See Laboratory Report
Preferred Specimen(s)
2 mL aliquot of 24-hour urine collection
Alternative Specimen(s)
Random urine
Minimum Volume
0.5 mL
Collection Instructions
Collect 24 hour urine. Refrigerate during collection. Also acceptable: Random urine (no reference intervals).
Transfer 2 mL aliquot from a well-mixed 24-hour urine to an ARUP standard transport tube or sterile plastic container.
Transport Container
Transport tube
Transport Temperature
Frozen
Specimen Stability
- Room temperature: 2 hours
- Refrigerated: 24 hours
- Frozen: 30 days
Setup Schedule
2 mL aliquot of 24-hour urine collection
Random urine
0.5 mL
Collect 24 hour urine. Refrigerate during collection. Also acceptable: Random urine (no reference intervals).
Transfer 2 mL aliquot from a well-mixed 24-hour urine to an ARUP standard transport tube or sterile plastic container.
Transfer 2 mL aliquot from a well-mixed 24-hour urine to an ARUP standard transport tube or sterile plastic container.
Transport tube
Frozen
Room temperature: 2 hours
Refrigerated: 24 hours
Frozen: 30 days
Refrigerated: 24 hours
Frozen: 30 days