The Effectiveness of a Care Bundle to Prevent Postpartum Hemorrhage After Cesarean Delivery

"1. Risk evaluation for PPH and Reserve plan;~2. Assess blood loss using Estimated Blood Loss Form and amnion fluid collection drape;~3. Satisfy any of the following conditions: i. If the estimated blood loss reaches 500ml but is less than 1000ml, and any of the following abnormal indicators are present; ii. If the estimated blood loss reaches 1000ml, no other indicators need to be considered: 1） Lack of uterine contractions 2） Persistent bleeding 3）Shock index (heart rate/systolic blood pressure) was greater than 0.9 Initiate the following protocols①, ②, ③, ④~ * Maintain uterus tone (Administration of Oxytocin and second-line medications to promote uterine contraction)~ * Intravenous infusion ③ Administered tranexamic acid ④ Multi-methods and Multi-disciplinary"