C-peptide values are normally in the range of 250-600 pmol/L, and either high or low is not good.
C-peptide, also known as connecting peptide, is secreted by pancreatic beta cells. It has a common precursor insulinogen with insulin, and its value reflects the function of islet cells to some extent. It is also a guide for the typing and identification of diabetes.
Generally speaking, the normal range of values for the population is between 250-600 pmol/L. Higher or lower values require further testing.
When measuring C-peptide, the values of fasting, 1 hour, 2 hours and 3 hours after taking sugar are usually selected. Fluctuation within the normal range is not a problem, if there is a high or low, you need to be in the regular hospital for further examination, to clarify the cause of the disease and follow the doctor’s instructions for treatment.