Connect Sign In
C-Peptide, 24-Hour Urine
Ordering Recommendation
Use to detect insulin secretion. Do not use to diagnose diabetes mellitus.
New York DOH Approval Status
Specimen Required
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. (Min: 0.5 mL)
Frozen.
Ambient: 2 hours; Refrigerated: 7 days; Frozen: 1 month
Methodology
Quantitative Chemiluminescent Immunoassay (CLIA)
Performed
Sun-Sat
Reported
Within 24 hours
Reference Interval
| Test Number |
Components |
Reference Interval |
|||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| C-Peptide, Urine 24 Hour | 14-156 µg/d | ||||||||||||||||||||||
| Creatinine, Urine - per 24h |
|
Interpretive Data
Per 24h calculations are provided to aid interpretation for collections with a duration of 24 hours and an average daily urine volume. For specimens with notable deviations in collection time or volume, ratios of analytes to a corresponding urine creatinine concentration may assist in result interpretation.
FDA
Note
Hotline History
CPT Codes
84681
Components
| Component Test Code* | Component Chart Name | LOINC |
|---|---|---|
| 0020207 | Creatinine, Urine - per volume | 35674-1 |
| 0020208 | Creatinine, Urine - per 24h | 2162-6 |
| 0081122 | C-Peptide, Urine ng/mL | 55920-3 |
| 0096367 | C-Peptide, Urine 24 Hour | 27944-8 |
| 0097110 | Total Volume | 19153-6 |
| 0097111 | Hours Collected | 30211-7 |
Aliases
- 24 hr c-peptide
- C-Peptide, Urine
- Connecting peptide insulin
- Insulin C-peptide
- Proinsulin C-pepti
