IVTT

IVTT could either stand for "In Vitro Transcription/Translation," or it could also stand for "Intravenous Tolbutamide Test."

"In Vitro Transcription/Translation" is a simple and fast method to synthesize small amounts of a protein or to confirm the presence of an open reading frame.

"Intravenous Tolbutamide Test" is a test administered intravenously to detect insulin-producing tumors in which plasma insulin and glucose are measured at intervals after an intravenous dose of tolbutamide.