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Test Code CPEPT C-Peptide

Important Note

MUST BE FROZEN. SPECIMEN IS ONLY GOOD FOR 24 HOURS REFRIGERATED.

Additional Codes

Epic EAP
LAB521  C-peptide 

Specimen Requirements

Container/Tube Type: 

Serum
Heparinized Plasma

 

Preferred Collection Container: 

SST (Serum Separator)

 

Also Acceptable Collection Container: 

Red (No Additive)
Green (Lithium Heparin)
Plasma Separator Tube

 

Collection Information: 

Collect blood in a serum separator tube.

 

Transport Information: 

1.0 mL serum frozen in plastic vial.

 

Minimum Sample Volume: 

0.75 mL of serum (approximately 1.25 mL of whole blood based upon a normal patient hematocrit)

 

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.

 

Unacceptable Conditions: 

Hemolysis

Specimen Transport Temperature

Refrigerated Stability: 

24 hours

 

Frozen Stability: 

30 days - Preferred

 

Ambient Stability: 

4 hours

Performing Laboratory

Pathology Laboratory, UnityPoint Health, Des Moines

CPT

84681

Performance

Methodology: 

Electrochemiluminescence Immunoassay

 

Performed: 

Daily