Screening & 75g OGTT Diagnostic Criteria

Universal 24–28 week screening vs early high-risk screening (<12 weeks), 75g 2-hour OGTT procedure, and diagnostic cutoffs (Fasting ≥5.1 mmol/L, 1-hr ≥10.0 mmol/L, 2-hr ≥8.5 mmol/L — 1 abnormal value confirms GDM).