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| Time | Whole blood venous | Whole blood capillary | Plasma venous | Plasma capillary |
| Fasting glucose (≥) | 6.1 mmol/L | 6.1 mmol/L | 7.0 mmol/L | 7.0 mmol/L |
| 2‐hour glucose | 6.7 mmol/L | 7.8 mmol/L | 7.8 mmol/L | 8.9 mmol/L |
Cutoff levels for diagnosis of gestational diabetes for whole blood and plasma glucose. Diabetes is diagnosed if fasting plasma glucose level is > 7.0 mmol/L, or if 2‐hour level is > 11.1 mmol/L (WHO 1999).
