Fetal Heart Rate pattern monitoring
Baseline fetal heart activity |
- Normal : 120~160beats/min Tachy : 1, 2, 5, 9, 10  Brady  |
- Beat to beat variation 증가하는 경우 : 4  감소하는 경우 : 6, 8, 11, 13, 14  |
- Sinusoidal FHR pattern 원인 : 3, 7, 12  |
1. maternal fever(mc) 2. amnionitis 3. severely anemic fetus D-isoimmunization, ruptured vasa previa, twin to twin transfusion, fetomaternal hemorrhage 4. fetal breathing, fetal body movement, advancing gestation 5. fetal compromise 6. sleeping fetus 7. alphoprodine, meperidine, butophanol, morphine 8. fetal hypoxia의 single most reliable sign 9. arrhythmia 10. maternal parasympatholytic or sympathomimetic drug use (atropin) (terbutaline) 11. normal premature fetus 12. amnionitis, fetal distress, umbilical occlusion 13. maternal academia(eg. Diabetic ketoacidosis) 14. analgesic drug Meperidine, morphine, barbiturate, diazepam, atropine, scopolamine, thiazine, general anesthesia |