Z分数质控图监测多台床旁血气分析仪室内质控的应用

目的探讨利用Z分数质控图监测临床科室多个床旁血气分析仪的室内质量控制情况,评估其应用效果。方法对分布于临床科室的多个床旁血气仪进行不同浓度质控品的测定,将每次的pH值、氧分压(pO2)和二氧化碳分压(pCO2)测定值转换为相应的Z分数,绘制Z分数质控图。结果通过计算而得的3个临床科室3台床旁血气分析仪Z分数可绘制出血pH值、pO2和pCO2的Z分数质控图,在12次测定中,3台仪器均无失控现象,可简洁清晰地反映不同仪器不同浓度质量控制的结果。结论Z分数质控图能将不同浓度、不同仪器的质控品测定值反映在同一张图上,简洁明晰,节约了质控成本,减轻了工作量,便于质控员监督检验科外仪器的分析质量。

Application of Z-score Quality Control Chart in Monitoring of Multiple Bedside Blood Gas Analyzers for Internal Quality Control

[Objective]To explore the utilization of Z-score quality control chart in monitoring of multiple bedside blood gas analyzers for internal quality control,and evaluate the application effect.[Methods]Multi-level control material detection was performed on multiple bedside blood gas analyzers distributed in Clinical departments,the values of pH,pO2 and pCO2 were converted into Z-score to form Z-score control chart.[Results]The calculated Z-score chart can be used to form Z-score control chart of blood pH,pO2 ...