Doctor explains C-peptide blood test used in diabetes

In this video Doctor O'Donovan explains the C-peptide blood test including 1. What C-peptide is 2. Why the test is used 3. What the result of the test might mean.

C-peptide can be useful as a marker of insulin production.

High concentrations of C-peptide within the bloodstream generally indicate high concentrations of insulin. This may be due to excessive insulin production by the body or insulin resistance. High concentrations of C-peptide also are seen with insulinomas which is a tumour of the pancreas that causes excess insulin to be produced. It can also be seen in other disorders such as hypokalaemia, pregnancy, Cushing's syndrome, and kidney disease.

Low concentrations of C-peptide are seen when insufficient insulin is being produced by the beta cells or when production is suppressed by injected insulin.

More information on diabetes: https://www.nhs.uk/conditions/diabetes/

More information on C-peptide: https://labtestsonline.org.uk/tests/c...

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