tolbutamide test

tol·bu·ta·mide test

a test to detect insulin-producing tumors; after a 1-g intravenous dose of tolbutamide, plasma insulin and glucose are measured at intervals up to 3 hours; higher insulin responses and lower glucose values characterize patients with such tumors.

tolbutamide test

n.
A test to detect insulin-producing tumors in which plasma insulin and glucose are measured at intervals after an intravenous dose of tolbutamide.

tol·bu·ta·mide test

(tol-byū'tă-mīd test)
An assay to detect insulin-producing tumors; after a 1-g intravenous dose of tolbutamide, plasma insulin and glucose are measured at intervals up to 3 hours; higher insulin responses and lower glucose values characterize patients with such tumors.