Alternate Names

  • Insulin C-Peptide
  • Connecting Peptide Insulin
  • Proinsulin C-Peptide

The pancreas releases insulin and C-peptide; both can be measured to diagnose how well your pancreas is functioning. Although insulin levels are usually measured, C-peptide levels may also be tested, in order to provide a more accurate picture of pancreas function following transplant, or to diagnose the presence of pancreatic cancer. Low blood levels of C-peptide and insulin are seen in people with Type I Diabetes Mellitus (DM); normal levels of C-peptide and insulin are seen in people with Type II DM; and C-peptide levels may also be an indication of whether you need to continue receiving insulin injections as a treatment for DM.


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Posted 4 years ago
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Dear Sir/MadamPlease could you let me know the normal c-peptide values in fasting and 2 h postprandial conditions?Thank you in advance for your help.

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