C-Peptide
Test Mnemonic
CPEPT
CPT Codes
- 84681 - QTY (1)
LOINC ®
1986-9
Performing Laboratory
Cleveland Clinic Laboratories
Specimen Requirements
| Volume | Type | Container | Collect Temperature | Transport Temperature | Special Instructions |
|---|---|---|---|---|---|
| 1 mL | Serum | SST (Gold) | Refrigerated | Separate and freeze if storage/transport time is longer than 24 hours. |
Minimum Specimen Requirements
| Volume | Type | Container | Collect Temperature | Transport Temperature | Special Instructions |
|---|---|---|---|---|---|
| 0.3 mL |
Stability
| Environmental Condition | Description |
|---|---|
| Ambient | 1 Day |
| Refrigerated | 7 days |
| Frozen | 14 days |
Days Performed
Sun - Sat
Turnaround Time
1 day
Methodology
| Name | Description |
|---|---|
| Chemiluminescence Immunoassay (CLIA) |
Reference Range
| C-Peptide | |||||
|---|---|---|---|---|---|
| Sex | Age From | Age To | Type | Range | Range Unit |
| Normal | 0.8 - 3.9 | ng/mL |
Clinical Info
Evaluation of insulin secretion in diabetic patients