C-Peptide, Serum

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C-Peptide is a byproduct of insulin production released by the pancreas in equal amounts to insulin. Measuring C-Peptide provides a reliable picture of how much insulin your body i s actually producing — independent of any external insulin use. This makes it a valuable tool for distinguishing between Type 1 and Type 2 diabetes, assessing beta cell function, and evaluating insulin resistance. Low C-Peptide levels may indicate reduced insulin production, as seen in Type 1 diabetes or advanced Type 2 diabetes. Elevated levels may suggest insulin resistance, insulinoma, or other conditions where the pancreas is overproducing insulin. Diagnostic Blood Test: C-Peptide, Serum Show more