Test Code CPEPT C-Peptide
Additional Codes
| PathLab | CPEPT |
| Epic ID | LAB521 |
Specimen Requirements
Preferred Collection Container:
SST (Serum Separator)
Light Green (Lithium Heparin Plasma Separator Tube)
Also Acceptable Collection Container:
Red (No Additive)
Green No Gel (Lithium Heparin)
Collection Information:
Collect blood in a serum separator tube or light green lithium heparin separator tube.
Transport Information:
Centrifuge and aliquot 1.0 mL serum or plasma into a plastic transport vial. Send frozen.
Minimum Sample Volume:
0.75 mL of serum
Remarks:
Patient Preparation: 12 hours before this test do not take multivitamins or dietary supplements containing biotin or vitamin B7, which are commonly found in hair, skin, and nail supplements and multivitamins. Patient should fast 8 hours prior to collection.
Stability/Transport
| Temperature | Stability | Preferred Transport |
| Refrigerated | 24 hours | |
| Frozen | 30 days | X |
| Room Temp | 4 hours |
Unacceptable Conditions
Hemolysis
Performing Lab
Pathology Laboratory
Day(s) Performed
Daily
CPT Code Information
84681