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84681 Assay of c-peptide

Pathology & Lab

Also known as: C-peptide test, connecting peptide

Quantitative assay of C-peptide (connecting peptide) in serum or plasma, measured by immunoassay to assess endogenous insulin secretion independent of exogenous insulin administration.

Clinical Context

Differentiates type 1 from type 2 diabetes, evaluates insulin secretory capacity in diabetics, and detects hypoglycemia from surreptitious insulin injection versus sulfonylurea use.

RVU Breakdown

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Specialties

Clinical PathologyEndocrinologyInternal Medicine

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CPT® is a registered trademark of the American Medical Association. Data sourced from CMS Physician Fee Schedule RVU26A. Descriptions, synonyms, and clinical context are original content by RVU Edge.