Table 3 IADPSG criteria for diagnosis of GDM and overt diabetes in pregnancy [14]
| First prenatal visit | Measure FPG, HbA1c or RPG |
Overt diabetes if, FPG ≥ 126 mg/dl (7.0 mmol/l) Or random plasma glucose ≥ 200 mg/dl (11.1 mmol/l) Or HbA1c ≥ 6.5 % GDM if, FPG ≥ 92 mg/dl (5.1 mmol/l) but <126 mg/dl (7.0 mmol/l) |
| If the test is normal in the first prenatal visit, test for GDM during 24–28 weeks | ||
| 24–28 weeks of gestation | 75 g OGTT |
Pre existing diabetes if FPG ≥ 126 mg/dl (7.0 mmol/l) GDM if, FPG ≥ 92 mg/dl (5.1 mmol/l) 1 h ≥ 180 mg/dl (10.0 mmol/l) 2 h ≥ 153 mg/dl (8.5 mmol/l) |