INS Gene Clinical Data Interchange Standards Consortium Terminology Protein or Enzyme Type Measurement CDISC SDTM Laboratory Test Code Terminology CDISC SDTM Terminology CDISC SDTM Laboratory Test Name Terminology C-peptide Measurement CDISC C-peptide Measurement C-peptide suppression test A test used to help diagnose a type of pancreatic tumor called an insulinoma. After fasting, the patient receives an injection of insulin and the level of C-peptide (a substance released with insulin by the pancreas) in the blood is measured. In patients who have an insulinoma, the level of C-peptide is higher than normal. C0202100 C-peptide The determination of the amount of C-peptide present in a sample. A measurement of the C (connecting) peptide of insulin in a biological specimen. C-peptide_Measurement C74736 C-peptide Measurement Laboratory Procedure CPEPTIDE CDISC SEND Terminology