检验医学 ›› 2015, Vol. 30 ›› Issue (2): 191-194.DOI: 10.3969/j.issn.1673-8640.2015.02.021

• 实验室管理·论著 • 上一篇    下一篇

2010至2014年参加卫生部血铅检测室间质评结果回顾分析

余晓刚, 颜崇淮   

  1. 上海交通大学医学院附属新华医院上海市环境与儿童健康重点实验室,上海 200092
  • 收稿日期:2014-10-08 出版日期:2015-02-28 发布日期:2015-02-12
  • 作者简介:null

    作者简介:余晓刚,男,1973年生,学士,主管技师,主要从事微量元素分析及质量管理。

  • 基金资助:
    科技部973项目(2012CB525001);环境保护部行业公益性项目(2013467048);上海市科委资助项目(124119a1400)

Retrospective analysis on blood lead measurement results in eaternal quality assessment organized by the Ministry of Health from 2010 to 2014

YU Xiaogang, YAN Chonghuai   

  1. Shanghai Key Laboratory of Environmental and Children's Health, Xinhua Hospital, Shanghai Jiaotong University School of Medicine, Shanghai 200092, China
  • Received:2014-10-08 Online:2015-02-28 Published:2015-02-12

摘要: 目的

通过回顾分析2010至2014年参加卫生部临床检验中心血铅检测室间质量评价(EQA)的成绩,探讨稳定和提高血铅检测质量的因素,为实验室全面质量管理的实施提供科学依据。

方法

采用偏差、能力比对(PT)得分和Z比分数对2010至2014年7个批次35份EQA成绩进行统计分析。

结果

分析2010~2014年5年内参加卫生部临床检验中心血铅检测EQA的成绩,偏差符合卫生部临床检验中心要求,均属在控范围;能力比对得分均为100%;Z比分数< 2.0,均为满意。

结论

本实验室的血铅检测系统完全胜任大批量样本的检测需求。在EQA统计中,Z比分数能更好剔除离群值的影响,更全面客观地反映参评者的检测水平,可作为新的EQA统计方法。

关键词: 室间质量评价, 血铅检测, 偏差, Z比分数

Abstract: Objective

To analyze retrospectively blood lead measurement results in external quality assessment (EQA) organized by the Ministry of Health from 2010 to 2014, and to investigate the factors which can stabilize and improve the quality of blood lead measurement in order to provide scientific reference for quality control.

Methods

A total of 35 EQA results in 7 batches from 2010 to 2014 were analyzed by bias, proficiency testing(PT) score and Z score.

Results

The results of bias met the requirements of the Ministry of Health within the range of quality control. The PT score was 100%. The Z score was <2.0 as satisfaction.

Conclusions

The blood lead measurement system of our laboratory is qualified and suitable for determining large-scale samples. The Z score can eliminate the influence of outliers, thus reflects the contestant's levels more comprehensively and objectively. It can be used as a new EQA indicator.

Key words: External quality assessment, Blood lead measurement, Bias, Z score

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