C-PEPTIDE

Specimen Required
Draw blood in a plain red-top tube. Centrifuge, separate and freeze within 1 hour of collection. Send 1.0 mL serum (0.5 mL minimum) frozen in a screw-capped plastic vial.

Alternate Specimen
Serum: SST

Rejection Criteria
Grossly icteric and lipemic specimens, hemolyzed specimens, and plasma

Methodology
Chemiluminescence

Stability
Room Temperature: Unacceptable; Refrigerated: Unacceptable; Frozen: 14 days

Reference Range
0.8-3.9 ng/mL

Performed
Monday-Friday

Turnaround Time3 days
Test CodeCPEP
CPT-4 Code (s)
84681
LOINC Codes
1986-9

Warde
Medical
Laboratory