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Test Code C PEPTIDE C Peptide

Clinical System Name

 C Peptide


Sample Requirements

Specimen: Whole blood

Container(s): Gold SST,Red Top,Gold Microtainer,  Lt. Green/Li Heparin

Preferred Vol: 1.0 mL

Minimum Vol: 0.5 mL

Fasting sample preferred.


Processing Instructions

Reject due to: gross hemolysis,EDTA

Spin: Y

Aliquot: Y

Temp: -20 C

Storage location: CPA freezer,  Fz1 rack

Off-site collection: Spin blood. Transfer serum/plasma to aliquot container. Freeze


Specimen Type Temperature Time
separated serum/plasma Room temp  
  Refrigerated 2 h
  Frozen -20 C 1 w



STAT Performed TAT
N T,Th 2-5 d


Contact Chemistry Lab for request outside of stated availability. (206) 987-2565

Performing Laboratory

Seattle Children's Laboratory    


Department:  Chemistry

Location: Chem East

Phone Number:  (206) 987-2617




Reference Range

 0.7-4.4 ng/mL



Method:  Chemiluminescence on Siemens Immulite

Analytical Volume: 0.25 mL serum


CPT Code