【摘要】 【目的】调查目前广东省血气分析检验项目的技术水平,提出质量改进措施并为今后制定室间质量评价标准提供依据。【方法】按美国CLIA’88能力验证（Proficiency Testing,PT）方法评价广东省2005-2008年93间实验室血气分析三个测定项目9840个测定值的PT成绩,统计分析各项目在各百分位数的偏倚值及变异系数,并计算出允许误差与PT允许误差比较。【结果】pH、pCO₂、pO₂三个项目的PT合格率分别是83.51%、89.57%和97.10%,允许总误差分别是0.490%、8.98%和11.49%,pH、pCO₂两个项目的允许误差与PT允许误差接近,pO₂的允许误差小于PT允许误差。【结论】目前血气分析项目的测定结果基本符合PT评价的技术要求,pO₂项目的PT允许范围较宽,建议实验室使用室间质量评价多规则评价方法,提高检出误差的灵敏度。更多还原

【Abstract】 [Objective]To investigate the technical level of blood gases tests in Guangdong.Propose measures of quality improvement and provide the basis for setting EQA in the future.[Methods]We evaluated 9840 data from 93 labs in Guangdong province according to CLIA’ 88 proficiency testing criteria between 2005 and 2008.The PT results,bias,and CV were calculated, the total allow error was also analyzed.[Results]The pass rate of pH,pCO₂,and pO₂ were 83.51%,89.57%,and 97.10%, respectively.The acceptable range based present technical condition were;pH<0.490%,pCO₂<8.98%,pO₂<11.49%. [Conclusions]The results of Blood Gases accord with PT requirement.The permitted range of pO2 is too wide.We suggest that labs should use several rules to improve the sensitivity of checking error.更多还原