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Gestational Diabetes Testing Results
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3 Hour Gestational Diabetes Glucose Tolerance Test
Greater than normal blood sugar levels will mean you have gestational diabetes.
Normal blood values for a 50-gram oral glucose tolerance test used to screen for gestational diabetes:
- 1 hour: equal to or less than 140 mg/dL
Normal blood values for a 100-gram oral glucose tolerance test used to screen for gestational diabetes:
3 Hour Gestational Diabetes Glucose Tolerance Test
| TIME OF SAMPLE COLLECTION |
TARGET LEVEL |
|---|---|
| Fasting* (prior to glucose load) |
95 mg/dL (5.3 mmol/L) |
| 1 hour after glucose load | 180 mg/dL (10.0 mmol/L) |
| 2 hours after glucose load | 155 mg/dL (8.6 mmol/L) |
| 3 hours after glucose load* |
140 mg/dL (7.8 mmol/L |
| INDICATION: If two or more values meet or exceed the target level, gestational diabetes is diagnosed. |
|
| * A 75-gram glucose load may be used, although this method is not as well validated as the 100-gram OGTT; the 3-hour sample is not drawn if 75 grams is used. | |
