Test Name: C-Peptide
Health Link Test Code: XCPEP
LIS Test Code: CPEP
CPT Code(s): 84681
Methodology: Chemiluminescent Immunoassay
Days Performed: Daily, 24 hours.
In-Lab Turnaround Time: 4 hours.
Stat In-Lab Turnaround Time: Not available stat.
Collection Container: Red cap with yellow ring (SST)
Also Acceptable: Red top
Collection Volume: 3 mL
Pediatric Collection Volume: 1 mL
Sample Analyzed: Serum
Testing Volume: 1 mL
Pediatric Testing Volume: 0.3 mL
Centrifuge. If a complete barrier has not formed, transfer cell-free serum to plastic vial. Refrigerate.
Transport specimen to the laboratory. Transport with coolant pack if coming from clinic location.
0 days and up: 1.8-5.2 ng/mL
C-Peptide reference interval established for fasting adults.
Interpretation Type: Reference Interval