I looked on the American Diabetes website and there is an OGTT test- is that the test
--meaning oral glucose
. This is what they say about those results. OGTT test
, a person's blood glucose level is measured after a fast and two hours after drinking a glucose-rich beverage. If the two-hour blood glucose level is between 140 and 199 mg/dl, the person tested has pre-diabetes. If the two-hour blood glucose level is at 200 mg/dl or higher, the person tested has diabetes.