Buckland Sara S, Homer Caroline S E
Centre for Midwifery, Child and Family Health, Faculty of Nursing, Midwifery and Health, University of Technology Sydney, PO Box 123, Broadway, NSW 2007, Australia.
Women Birth. 2007 Jun;20(2):85-8. doi: 10.1016/j.wombi.2007.01.001. Epub 2007 Feb 21.
To determine the accuracy of the estimation of blood loss using simulated clinical examples.
Over 100 attendees came together at a seminar about postpartum haemorrhage in June 2006. Five blood loss assessment stations were constructed, each containing a simulated clinical example. Each station was numbered and was made up of a variety of equipment used in birthing suites. Over 5L of 'artificial' blood was made. The artificial blood was similar to the colour and consistency of real blood.
A convenience sample of 88 participants was given a response sheet and asked to estimate blood loss at each station. Participants included midwives, student midwives and an obstetrician.
Blood in a container (bedpan, kidney dish) was more accurately estimated than blood on sanitary pads, sheets or clothing. Lower volumes of blood were also estimated correctly by more participants than the higher volumes.
Improvements are still needed in visual estimation of blood loss following childbirth. Education programs may increase the level of accuracy.
We encourage other clinicians and educators to embark upon a similar exercise to assist midwives and others to improve their visual estimation of blood loss after birth. Accurate estimations can ensure that women who experience significant blood loss can receive appropriate care and the published rates of postpartum haemorrhage are correct.
通过模拟临床实例来确定失血量估计的准确性。
2006年6月,100多名与会者齐聚一场关于产后出血的研讨会。设置了五个失血量评估站,每个评估站都包含一个模拟临床实例。每个评估站都有编号,由产房使用的各种设备组成。制备了超过5升的“人造”血液。人造血液在颜色和黏稠度上与真实血液相似。
选取88名参与者作为便利样本,给他们发放答题纸,要求他们估计每个评估站的失血量。参与者包括助产士、助产专业学生和一名产科医生。
与卫生巾、床单或衣物上的血液相比,容器(便盆、肾形盘)中的血液失血量估计得更准确。与较多血量相比,较少血量也有更多参与者能够正确估计。
产后失血量的视觉估计仍需改进。教育项目可能会提高估计的准确性。
我们鼓励其他临床医生和教育工作者开展类似活动,以帮助助产士及其他人员提高对产后失血量的视觉估计能力。准确的估计可确保失血量大的女性能够得到适当护理,并使公布的产后出血发生率准确无误。