C-Peptide

C-peptide testing can be used for a few different purposes. C-peptide is a substance produced by the beta cells in the pancreas when proinsulin splits apart and forms one molecule of C-peptide and one molecule of insulin. Insulin is the hormone that is vital for the body to use its main energy source, glucose. Since C-peptide and insulin are produced at the same rate, C-peptide is a useful marker of insulin production.

Specimen: 0.2 ml Serum

Reference Values: <5 ng/ml                       

Method: CLIA         

Loinc: 1986-9