It includes tests like Fasting plasma glucose (FPG) test, Oral glucose tolerance test (OGTT), and HbA1c test. FPG test measures your blood glucose levels after fasting for 12 hours. OGTT tests are ...
Reproducibility is another important property of a diagnostic test, a property for which the FPG appears to be preferable. When OGTTs were repeated in adults during a 2- to 6-week interval ...
No studies have examined the usefulness of the A1C test to predict future diabetes. Three studies have examined whether the FPG test or 2-h OGTT is a better predictor of future diabetes.