Pre-Diabetes Info Center
The Insulin-Resistance Diet: How to Turn Off Your Body's Fat-Making Machine recommends a well-researched health program based on the relationship between insulin and fat. While low-fat foods are a part of the plan, Cheryle R. Hart and Mary Kay Grossman (doctors at the Women's Workshop, a medical... Read more
Pre-Diabetes
Pre-diabetes Illustrated Medical Encyclopedia
Filed in: Pre-Diabetes Medical Encyclopedia
Definition: Oral Glucose Tolerance Test (OGTT)
What is an oral glucose tolerance test (OGTT)?Blood sugar levels higher than normal, but lower than diabetic ranges,classify a person as having impaired fasting glucose (IFG) or impaired glucose tolerance (IGT), both of which are used to diagnose pre-diabetes. To check for pre-diabetes, and see how a person reacts to a glucose load, an oral glucose tolerance test (OGTT) may be given to check blood sugar levels 2 hours after being given 75 grams of glucose to drink. The following general guidelines are for normal blood sugar ranges in non-diabetics are from the American Diabetes Association. These guidelines are not intended for "target blood sugar" ranges for people with diabetes. Young children, people newly diagnosed with diabetes, or who are beginning insulin pump therapy will have different target ranges set by their doctor. |
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Oral Glucose Tolerance Test Ranges
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2 Hours after drinking 75 grams of glucose |
Indication |
Less than 140 mg/dL |
Normal glucose tolerance, not diabetic |
From 140 to 200 mg/dL |
Impaired glucose tolerance (IGT), |
Over 200 mg/dL (11.1 mmol/L) or higher on more than one occasion |
Type 2 Diabetes |
Both IFG and impaired glucose tolerance (IGT) indicate pre-diabetes and are associated with an increased risk of developing type 2 diabetes. Lifestyle changes including weight loss and an exercise program, as well as possible oral medications are sometimes indicated.
There is no cure for type 2 (or type 1) diabetes, but pre-diabetes can often be completely reversed with proper medical intervention and changes in lifestyle.
Bob Harper, Personal Trainer for Biggest Loser Workout Video Series |
