Question

the test most specific for insulinoma is ______________. a) c - peptide b) glycosolated hemoglobin c) serum glucose d) fructosamine

Explanation:

Insulinoma is a tumor that secretes insulin. C - peptide is co - secreted with insulin from pancreatic beta cells. Measuring C - peptide helps distinguish endogenous insulin secretion (from insulinoma) from exogenous insulin administration (as exogenous insulin does not contain C - peptide). Glycosolated hemoglobin reflects long - term glycemic control. Serum glucose is a general measure of blood sugar. Fructosamine reflects short - term glycemic control.

Answer:

A. C - peptide