过程能力指数在临床生化实验室中的运用

Application of Process Capability Indices in the Clinical Biochemistry Laboratories

目的 通过调查临床生化实验室11个检测项目的过程能力指数,将已在工业生产、公共服务等多个领域广泛应用的过程能力指数（Cp及Cpk）引入临床实验室.方法 运用过程能力指数公式,结合Minitab软件计算11个生化检查项目两个质控浓度从2014年8月～2015年2月连续7个月的Cp及Cpk.结果 低浓度质控血清中77个Cp中有16个Cp≤1.33,61个Cp＞ 1.33;高浓度质控血清中77个Cp有9个Cp≤1.33,68个Cp＞1.33.结论 过程能力分析是一种以数据和事实为决策依据的管理方法,是一种更为客观、全面、科学的管理方法.

Objective To introduce process capability indices （Cp and Cpk） ,which have widely used in the industrial produc-tion, public services,and other fields,into the clinical laboratory by investigating the process capability indices （Cp, Cpk） of the 11 test items of clinical biochemical. Methods Daily quality control data of the Second Xiangya Hospital of Central South University from August in 2014 to February in 2015 were analyzed, Cp and Cpk values were calculated for low and high levels by using the process capability index formulas and Minitab software. Results There were 77 Cp in the low level including 16 Cp ≤1.33 and 61 Cp〉1. 33. In the other side. There were 77 Cp in the high level including 9 Cp≤1. 33 and 68 Cp〉1. 33. Conclusion Process capability analysis is a management method based on data and facts for decision making. It is a more objective,comprehensive and scientific management method.