Pre-Diabetes

Pre-diabetes Illustrated Medical Encyclopedia

 

Filed in: Pre-Diabetes Medical Encyclopedia

Related: FAQs About Insulin Resistance and Pre-Diabetes

 

Definition: Impaired Glucose Tolerance

What is impaired glucose tolerance?

Impaired glucose tolerance (IGT) is a term to describe when a person has elevated blood sugar (blood glucose) in response to eating.

IGT is diagnosed when blood sugar levels are not normal, but not high enough to be classified as diabetes.

IGT is one reason why a person may be diagnosed with pre-diabetes. IGT carries an increased risk of developing type 2 diabetes.

Blog | Store | Newsletter
 

Resources

Pre-Diabetes Glossary and Definitions

Illustrated Pre-diabetes Medical Encyclopedia

Shop the Pre-diabetes.com Amazon Store

Shop
Amazon

Business Directory

Shop Our Amazon Store

 
 

Oral Glucose Tolerance Test Ranges
(except during pregnancy)
(per American Diabetes Association Guidelines)

2 Hours after drinking 75 grams of glucose

Indication

Less than 140, or
7.8 mmol/L

Normal glucose tolerance, not diabetic

From 140 to 200 mg/dL, or
7.8 to 11.1 mmol/L

Impaired glucose tolerance (IGT),
or Pre-diabetes

Over 200 mg/dL, or
11.1 or higher on more than one occasion

Type 2 Diabetes
(an OGTT would never be given to a person suspected of having type 1 diabetes)

How to Improve Glucose Tolerance

Lifestyle changes including weight loss and an exercise program, as well as oral medications can improve glucose tolerance.

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.

 

Back to Top

 

All profits from this site are donated to diabetes charities.