Fulfilment of standards for diagnosis should include one major and one minor criterion. | |
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Major criteria: | |
1. | Irregular foetal heartbeats (non-uniform foetal heart rate between the uterine contractions) |
2. | Abnormal foetal heart rate (>180 or <100 beats/min) |
Minor criteria: | |
1. | Persistence of irregular heartbeats despite hydration and change of maternal position |
2. | Fresh meconium-stained liquor |
3. | Reduced foetal movement |