A glucose tolerance test measures how well your body’s cells are able to absorb glucose, or sugar, after you ingest a given amount of sugar. Doctors use fasting blood sugar levels and hemoglobin A1c values to diagnose type 1 and type 2 diabetes, and prediabetes. Doctors primarily use a glucose tolerance test to diagnose gestational diabetes.
This can be a useful test in helping to diagnose: Pre-diabetes, Gestational diabetes in pregnant women, Insulin resistance, and Reactive hypoglycemia.
