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0070103
Serum, C-Peptide
C PEP
Ordering Recommendation
Aids in the detection of insulinoma. May aid in distinguishing type 1 from type 2 diabetes mellitus (DM) in ambiguous cases. Do not use to diagnose DM.
New York DOH Approval Status
This test is New York state approved.
Specimen Required
Patient Preparation
Fasting specimen preferred.
Collect
Serum separator tube
Specimen Preparation
Allow specimen to clot completely at room temperature. Separate serum from cells ASAP. Submit specimen in an ARUP Standard Transport Tube.
Storage/Transport Temperature
Transport 1 mL serum frozen. (Min: 0.5 mL)
Unacceptable Conditions
Grossly hemolyzed specimens.
Remarks
Stability
Ambient: 8 hours; Refrigerated: 7 days; Frozen: 1 month
Methodology
Quantitative Chemiluminescent Immunoassay
Performed
Sun-Sat
Reported
Within 24 hours
Reference Interval
Effective August 16, 2021
0.5-3.3 ng/mL
Interpretive Data
Compliance Category
FDA
Note
Reference interval applies to fasting specimens. To convert to nmol/L, multiply ng/mL by 0.33.
Hotline History
N/A
CPT Codes
84681
Components
| Component Test Code* | Component Chart Name | LOINC |
|---|---|---|
| 0070103 | Serum, C-Peptide | 1986-9 |
* Component test codes cannot be used to order tests. The information provided here is not sufficient for interface builds; for a complete test mix, please click the sidebar link to access the Interface Map.
Aliases
- C Peptide
- C Peptide Connecting Peptide of Insulin
- C-Peptide, Serum
- Connecting Peptide of Insulin
Serum, C-Peptide
