Definitions of hyperglycemia and hypoglycemia in pregnant women
| Goals |
| Hemoglobin A1c < 6.5% (if this can be done safely) |
| Fasting plasma glucose < 95 mg/dL (5.3 mmol/L) |
| One-hour postprandial glucose < 140 mg/dL (7.8 mmol/L) |
| Gestational diabetes |
| 1-step approach: 75-g glucose tolerance testing Fasting plasma glucose ≥ 92 mg/dL (5.1 mmol/L) 1-hour plasma glucose ≥ 180 mg/dL (10.0 mmol/L) 2-hour plasma glucose ≥ 153 mg/dL (8.5 mmol/L) |
| 2-step approach: 50-g glucose tolerance testing: a value ≥ 140 mg/dL (7.8 mmol/L) at 1 hour warrants a 3-hour 100-g test. If 2 of the values below are abnormal, the diagnosis is gestational diabetes. Fasting plasma glucose ≥ 95 mg/dL (5.3 mmol/L) 1-hour plasma glucose ≥ 180 mg/dL (10 mmol/L) 2-hour plasma glucose ≥ 155 mg/dL (8.6 mmol/L) 3-hour plasma glucose ≥ 140 mg/dL (7.8 mmol/L) |
| Hypoglycemia (avoid) |
| Plasma glucose concentration ≤ 70 mg/dL (≤ 3.9 mmol/L) |
Adapted from information in references 12 and 13.