Maternal care for abnormalities of the fetal heart rate or rhythm

**Inclusion terms:** - Maternal care for depressed fetal heart rate tones - Maternal care for fetal bradycardia - Maternal care for fetal heart rate abnormal variability - Maternal care for fetal heart rate decelerations - Maternal care for fetal heart rate irregularity - Maternal care for fetal tachycardia - Maternal care for non-reassuring fetal heart rate or rhythm