What affects C-peptide levels?

What affects C-peptide levels?

C-peptide levels are suppressed in the following: Type 1 diabetes mellitus. Exogenous insulin injection (factitious) Hypoglycemia due to insulin-like growth factor secreting tumor.

What does low C-peptide mean?

C-peptide is a sign that your body is producing insulin. A low level (or no C-peptide) indicates that your pancreas is producing little or no insulin. A low level may be normal if you have not eaten recently. Your blood sugar and insulin levels would naturally be low then.

What’s a normal C-peptide level?

Normal results are within the range of 0.5 to 2.7 ng/mL, but can vary depending upon the lab that is used for testing. A high level of C-peptide could mean a number of conditions. These include a kidney problem or an insulinoma, a tumor of the insulin-making cells in the pancreas.

What does low C-peptide test mean?

Could C-peptide levels be an alternative indicator of insulinoma?

In conclusion, our insulinoma patient who presented with low serum insulin levels informed us that if the supposedly high insulin levels failed to rise, C-peptide levels along with imaging studies could be the alternative indicators that this patient suffers from insulinoma. Declaration of interest

Does a normal insulin level exclude insulinoma from the diagnosis?

It is of note that a normal insulin level does not exclude the disease, because the absolute insulin level is not elevated in all patients with insulinoma.

What does low C-peptide and high blood glucose mean?

Low levels of both c-peptide and blood glucose could indicate liver disease, a severe infection or Addison’s disease. High test result values. High levels of c-peptide with a low level of blood glucose could be an indication of insulin resistance, either type 2 diabetes or Cushing’s syndrome.

What is the difference between insulin and C-peptide?

C-peptide is released at the same time as insulin. For each molecule of insulin produced there is a molecule of c-peptide. C-peptide does not itself influence blood sugar. C-peptide is a useful marker of insulin production because c-peptide tends to remain in the blood longer than insulin. Why is a c-peptide test done? How is the test performed?