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Test Code CPTDE C-Peptide

Specimen Type

Blood

Container

Red top

Preferred Volume

4 mL

Offsite Collection Instructions

Recommend that patient fast for 8 hours.  Samples should be received in lab within 4 hours of collection.  If centrifugation is possible separate serum from cells and store at 2-8C for transport.

UCMC Collection Instructions

Recommend that patient fast for 8 hours.

Availability

Tuesday and Friday 7:00 am -2:00 pm

Turnaround Time

24 – 72 hrs

STAT Availability

Not Available

Test Usage

Aid in the diagnosis and treatment of patients with abnormal insulin secretion.

Test Methodology

Chemiluminescent enzyme immunoassay

CPT Code

84681

Test Includes

quantitative analysis of c-peptide in serum 

Reference Range

0.3 – 2.35 pmol/mL

Critical Results

None

Minimum Volume

2 mL

Fee Code

43226