C Peptide
Order Name
C PEPTIDE
Test Number: 2015225
Revision Date 04/26/2021
Test Number: 2015225
Revision Date 04/26/2021
| Test Name | Methodology | LOINC Code |
|---|---|---|
|
C Peptide
|
Chemiluminescence Assay | 1986-9 |
| SPECIMEN REQUIREMENTS | ||||
|---|---|---|---|---|
| Specimen | Specimen Volume (min) | Specimen Type | Specimen Container | Transport Environment |
| Preferred | 1 mL (0.5) | Serum | Clot Activator (Red Top, No-Gel) | Frozen |
| Alternate 1 | 1 mL (0.5) | Serum | Clot Activator SST | Frozen |
| Alternate 2 | 1 mL (0.5) | Plasma | Lithium Heparin PST (Light Green Top) | Frozen |
| Instructions | Patient should be fasting. It is recommended that the specimen be centrifuged, serum poured off and frozen for best stability. Serum/Plasma should be removed from cells/gel/ if testing delayed over 8hrs ambient or over 48hrs refrigerated. Stability: Ambient 1 day. Refrigerated 2 days. Frozen 3 months |
|||
| GENERAL INFORMATION | |
|---|---|
| Testing Schedule | Mon-Fri |
| Expected TAT | 1-3 days |
| Clinical Use | Useful in the determination of endogenous insulin secretion and the diagnosis of insulinoma. |
| CPT Code(s) | 84681 |
| Internal Comments | 7/14/17 updated stability- JK 6/15/18 changed Stability: Ambient=8 hours; Refrigerated=24 hours; Freeze if testing cannot be started within 24 hours. to Stability: Ambient < 24 hrs. Refrigerated 2 days. Frozen 3 months. JK |
| Service Provided By |  |
| Lab Section | Chemistry |