C-Peptide

4.6 (5 reviews)

The C-Peptide test measures endogenous insulin production to evaluate pancreatic beta-cell function and diabetes type.

₹449.00 ~~₹1000.00~~

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Test Details

Also Known As

C-Peptide Level Test, Serum C-Peptide Test, Insulin Secretion Test, Beta-Cell Function Test, Endogenous Insulin Test

Sample Type

Blood

Gender

Male, Female

Age Group

All Ages

Pathology

Test Code

C-Peptide is a substance released into the bloodstream in equal amounts to insulin when proinsulin is split into insulin and C-peptide by the pancreas. Unlike injected insulin, C-peptide reflects natural (endogenous) insulin secretion, making it a valuable marker for assessing pancreatic beta-cell function.
This test helps differentiate Type 1 diabetes (low or absent C-peptide) from Type 2 diabetes (normal or high C-peptide), evaluate unexplained hypoglycemia, detect insulinoma, and monitor residual insulin production in diabetic patients. It may be performed in fasting state or after stimulation, depending on clinical indication.

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Frequently Asked Questions

To measure natural insulin production and evaluate pancreatic beta-cell function.

C-peptide reflects only endogenous insulin, not injected insulin.

Low levels suggest Type 1 diabetes or reduced pancreatic insulin production.

It may indicate insulin resistance, Type 2 diabetes, or insulinoma.

Fasting may be required depending on the doctor’s recommendation.

Yes, it helps differentiate endogenous vs exogenous insulin causes.

C-Peptide