In the insulin and c-peptide report, if the C-peptide and insulin levels are significantly low, it is considered to be type 1 diabetes mellitus, and if the fasting insulin and C-peptide are high, it is considered to be type 2 diabetes mellitus with predominantly insulin resistance.
C-peptide report is usually checked by C-peptide release test, C-peptide release test and insulin level examination can understand the body’s pancreatic islet B-cell function, but also can identify the type of diabetes mellitus.
If the patient’s insulin and C-peptide release curves show low values at all time points after fasting and taking glucose with no peaks and low flat curves, it is considered to be type 1 diabetes mellitus because type 1 diabetes mellitus patients have absolute insulin deficiency due to destruction of pancreatic islet B cells.
If fasting insulin and c-peptide are elevated and postprandial insulin is also elevated with delayed peak C-peptide release test consider type 2 diabetes mellitus with predominant insulin resistance.
Abnormal insulin levels or C-peptide release test values are recommended to go to the hospital and ask the doctor to make a judgment based on the specific situation.