Inpatient and Outpatient Orderable

C-Peptide

Synonyms

C PEPTIDE CONNECTING PEPTIDE OF INSULIN
C-PEPTIDE
LAB521

Cerner Name

Clinical Info

Aids in the diagnostic workup of hypoglycemia.
Aids in diagnosis of factitious hypoglycemia due to surreptitious administration of insulin.
Aids in the evaluation of possible insulinoma

Specimen Sources

Blood, Arterial Blood, Capillary Blood, Central Line Blood, Venous

Specimen Types

Blood

Container

Gold Top Tube

Collection Instructions

Container/Tube: Gold-top tube(s)
Specimen: 2 mL serum (1 mL min)

Note:
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

Specimen Volume

2 mL serum ( 1 mL min)

Transport Instructions

Frozen Serum

Specimen Stability

4 hours Room Temperature
24 hours Refrigerated
30 days Frozen

Methodology

Electrochemiluminescence Immunoassay (ECIA)

Days Performed

Monday through Friday

Performing Laboratory

Northwell Health Laboratories

CPT

84681

PDM

5900100

Only Orderable at Locations:

Orderable Everywhere

Results

Component Name	Base Name	Common Name	External Name
C-PEPTIDE, SERUM	CPEPTIDE	C PEPTIDE	C-Peptide

Result Interpretation

1.1 - 4.4 ng/mL

Forms

LAB521

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