| Fasting Blood Glucose Levels |
| From 70 tot 99 mg/dL |
Normal fasting glucose levels |
| (3.9 to 5.5 mmol/L) |
| From 100 tot 125 mg/dL |
Weakened fasting glucose levels (pre-diabetes) |
| (5.6 to 6.9 mmol/L) |
| 126 mg/dL (7.0 mmol/L) and higher with more than one fasting glucose test. |
Diabetes |
| Oral Glucose Tolerance Test (OGTT) |
| [except pregnancy] |
| (2 hours after a 75-gram glucose drink) |
| Lower than 140 mg/dL (7.8 mmol/L) |
Normal glucose tolerance |
| From 140 to 200 mg/dL (7.8 to 11.1 mmol/L) |
Weakened glucose tolerance (pre-diabetes) |
| More than 200 mg/dL (11.1 mmol/L) with more than one test |
Diabetes |