C- Peptide

Description

The C-Peptide test measures the level of C-peptide, a protein produced in equal amounts to insulin during insulin synthesis. When proinsulin is split into insulin and C-peptide in the pancreas, both are released into the bloodstream in equimolar amounts. Unlike insulin, C-peptide is not removed by the liver and has a longer half-life, making it a more stable indicator of insulin production. This test is valuable in assessing pancreatic beta cell function and insulin secretion. It’s particularly useful in differentiating between type 1 and type 2 diabetes, evaluating the cause of hypoglycemia, and monitoring insulin production in individuals with insulin resistance or after pancreatic surgery. The C-peptide test can also help determine if high blood glucose is due to reduced insulin production or increased insulin resistance. In some cases, it’s used to detect insulin-secreting tumors or to adjust treatment in diabetes management.