Classification of Abnormal Glucose Metabolism Based on the 2-Hour Oral Glucose Tolerance Test, Which Consists of Fasting Blood Glucose Level and Blood Glucose Level Measured 2 Hours after a 75-g Oral Glucose Load4
| Diagnosis | Fasting Glucose (mg/dL) | 2-Hour Post Load Glucose (mg/dL) | |
|---|---|---|---|
| Normal glucose metabolism | <110 | and | <140 |
| Impaired fasting glucose | 110–125 | and | <140 |
| Impaired glucose tolerance | <126 | and | 140–199 |
| Diabetes mellitus | ≥126 | or | ≥200 |