求翻译：调查ICU患者的检验性失血量，从检验诊断学的角度分析失血原因，寻找对策。方法 从医院LIS系统调取患者资料，统计住院日、总失血量、日均失血量、各检验项目的失血比例、血气分析的平均采血量等数据。结果 ICU患者平均日失血量为7.63 ml，血培养组日均失血量为8.57 ml，非血培养组为5.58 ml，两者差异显著，有统计学意义。结论 应重视有血培养检验患者的检验性失血问题，完善LIS系统功能、正确规范操作、合理使用普通注射器采血等措施有助于减少检验性失血。是什么意思？

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Investigates the ICU patient's examination amount of blood loss, loses blood the reason from the examination diagnostics angle analysis, seeks the countermeasure.The method is the padding takes the patient material from hospital LIS, the statistical in hospital date, the total amount of blood loss,

Survey of ICU patients with testing of blood loss, from the perspective of inspection Diagnostics causes hemorrhagic, looking for countermeasures. LIS systems access to patient information from the hospital, statistics of stay, total blood loss, average daily blood loss, the proportion of blood loss