Diagnostic thresholds for diabetes and lesser degrees of impaired glucose regulation
| Category . | Test . | . | |
|---|---|---|---|
| . | FPG . | 2-h PG . | |
| Normal | <100 mg/dl (<5.6 mmol/l) | <140 mg/dl (<7.8 mmol/l) | |
| IFG | 100–125 mg/dl (5.6–6.9 mmol/l) | — | |
| IGT | — | 140–199 mg/dl (7.8–11.0 mmol/l) | |
| Diabetes* | ≥126 mg/dl (≥7.0 mmol/l) | ≥200 mg/dl (≥11.1 mmol/l) | |
| Category . | Test . | . | |
|---|---|---|---|
| . | FPG . | 2-h PG . | |
| Normal | <100 mg/dl (<5.6 mmol/l) | <140 mg/dl (<7.8 mmol/l) | |
| IFG | 100–125 mg/dl (5.6–6.9 mmol/l) | — | |
| IGT | — | 140–199 mg/dl (7.8–11.0 mmol/l) | |
| Diabetes* | ≥126 mg/dl (≥7.0 mmol/l) | ≥200 mg/dl (≥11.1 mmol/l) | |
When both tests are performed, IFG or IGT should be diagnosed only if diabetes is not diagnosed by the other test.
A diagnosis of diabetes needs to be confirmed on a separate day.