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C Peptide

Last Modified: 3/20/2012 9:06:45 AM


Patient Preparation:

8 hours Fasting
Specimen Requirements: 1.0 mL Serum in a SST Red Top Yellow Ring Tube
Collection Instructions: Specimen should be centrifuged and separated from cells within 2 hours of collection
Minimum Volume: 0.3 mL
Transport & Storage: Temperature/Stability:

8 hours Ambient
24 hours Refrigerated
30 hours Frozen (Can Not be re-frozen)
Reference Range: 0.4 - 2.8 mg/ml
Methodology: Chemiluminescence
Clinical Significance: C-Peptide is used in newly diagnosed Type 1 or Type 2 Diabetes to help determine the level of insulin the patient is producing. The results may also be used to distinguish insulin-secreting tumors from exogenous insulin. C-peptide measurements also can be used in conjunction with insulin and glucose levels to help diagnose the cause of documented hypoglycemia and to monitor its treatment.
Custom Panel: No

PRODUCTION SCHEDULE

Stat Eligible: Yes
Days Performed: Sunday, Monday, Tuesday, Wednesday, Thursday, Friday, Saturday
Sites Performed: Parkview Regional Medical Center
PHL Test Code: CPEP
Alternate Test Names: C-Peptide
CPT Coding: 84681

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