Glucose Tolerance Tests

A Glucose Tolerance Test is a procedure used to diagnose diabetes, pre-diabetes and insulin resistance. During the test, a person is given a glucose drink, followed by a series of blood glucose level measurements over a period of two hours. The results are used to assess how a person's body responds to glucose, and can be used to diagnose and monitor diabetes, pre-diabetes and insulin resistance. The test can also be used to monitor the effectiveness of any diabetes treatments.