Pre-Diabetes and Diabetes Glossary of Medical Terms

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Medical Tests


OGTT: See “oral glucose tolerance test” (below.)

Oral Glucose Tolerance Test (also called Glucose Tolerance Test and OGTT): A test used to help diagnose pre-diabetes, gestational diabetes, and type 2 diabetes.
The oral glucose tolerance test is given by a health care professional after an overnight fast. A blood sample is taken, then the patient drinks a high-glucose beverage. Blood samples are taken at intervals for 2 to 3 hours. Test results are compared with a standard and show how the body uses glucose over time.

OGTTs are also usually given to women who are pregnant to detect gestational diabetes.  More About OGTT

Oral glucose tolerance test (OGTT)

More About Medical Tests

Oral Hypoglycemic Agent: Medications taken by mouth by people with type 2 diabetes to keep blood glucose levels as close to normal as possible. Classes of oral hypoglycemic agents are alpha-glucosidase inhibitors, biguanides, D-phenylalanine derivatives, meglitinides, sulfonylureas, and thiazolidinediones.