ارزیابی دقت تخمین حجم خون ریزی بعد از زایمان با استفاده از خون مصنوعی در محیط شبیه سازی شده توسط دانشجویان مامایی

Background and purpose: Postpartum hemorrhage is one of the most common causes of maternal deaths worldwide. Most deaths associated with hemorrhage occur due to delay in diagnosis and proper management of bleeding. This study aimed to evaluate the accuracy of postpartum hemorrhage estimation using artificial blood. Materials and methods: This descriptive study was performed in 92 midwifery students, in Mashhad School of Nursing, 2013. The samples were selected using convenience sampling. Data was collected through questionnaires and objective structured clinical examination. Scenes similar to postpartum hemorrhage were created using artificial blood in six stations. The students saw each station and estimated the volume of blood. Data was analyzed applying central tendency and dispersion indices, paired T-test, and chi-square in SPSS V.16. Results: Accuracy of visual estimation of blood loss was between 2- 20%. In estimation of postpartum hemorrhage it was found that about 40.21% of the students have underestimated, 10.34% had accurate estimation of blood loss and 49.45% estimated higher volume of postpartum hemorrhage than their actual volume. Conclusion: Visual estimation of blood loss was not accurate in most of the subjects. Authorities should focus more on skills and competencies required for accurate estimation of blood loss after delivery by revising the educational curriculum.