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Dictionary of Cancer Terms

View in Spanish: Prueba de inhibición del péptido C

C-peptide suppression test (… PEP-tide suh-PREH-shun …)
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.



 
 
Source: National Cancer Institute Dictionary of Cancer Terms, available at www.cancer.gov/dictionary.