Definitions for "C-peptide"
is formed in the beta cells of the pancreas therefore a test of C-peptide levels indicates the amount of beta cell function occurring in the pancreas.
A post-translational cleavage product in the reaction from proinsulin to insulin.
A substance that the pancreas releases into the bloodstream in equal amounts to insulin. A test of C-peptide levels will show how much insulin the body is making.