自建新检测系统ALT测定的精密度和正确度评价 |
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引用本文: | 彭小华,李剑峰,何鑫.自建新检测系统ALT测定的精密度和正确度评价[J].中国现代医生,2012(34):102-103. |
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作者姓名: | 彭小华 李剑峰 何鑫 |
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作者单位: | [1]江西省新余市中心血站检验科,江西新余338000 [2]江西省新余市妇幼保健院检验科,江西新余338000 |
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摘 要: | 目的通过对自建新检测系统与参考系统ALT测定进行精密度和正确度评价,探讨自建新检测系统ALT测定结果的随机误差和系统误差,是否达到临床可接受标准。方法参照CLSI的EP5-A2和EP9-A2文件,以德灵全自动生化分析仪检测系统作为参考系统,自建新检测系统作为待评系统,分别用质控品和新鲜标本进行精密度评价和正确度评价。结果精密度评价:自建新检测系统天间不精密度和批内不精密度分别小于1/3和1/4允许误差;正确度评价:两个检测系统相关性良好,系统误差在临床允许误差范围内。结论自建新检测系统的误差达到临床可接受标准,检测结果具有可比性。
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关 键 词: | (CLSI)EP5-A2文件 EP9-A2文件 ALT 方法比对 偏倚评估 |
The evaluation on ALT determination precision and accuracy of new self- built system |
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Authors: | PENG Xiaohua LI Jianfeng HE Xin |
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Institution: | 1.Clinical Laboratory, Xinyu City Central Blood Center,Xinyu 558000,China; 2.Clinical Laboratory, Xinyu City Maternal and Child Health-Care Center, Xinyu 338000, China |
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Abstract: | Objective To probe whether the random and systematic error of the result of ALT determination by new self- established system can reach the clinically acceptable standards,through the precision and accuracy evaluation on ALT determination by new self-established system and reference system. Methods Reference to EP5-A2 and EP9-A2 files of CLSI,we make Dimension RxL clinical chemistry systems as the reference system,and new self-established determination system as the evaluating one to evaluate the precision and accuracy with the controls and fresh specimens. Results The precision evaluation: for the new self-established determination system,the inter-day and intra imprecision are less than 1/3 and 1/4 of the allowable error respectively; the accuracy evaluation: the correlation of two detection systems is really good and the systematic error is in clinically-allowable range. Conclusion The systematic error of new self-established system reaches the clinically-acceptable standard which the test result is comparable. |
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Keywords: | (CLSI) EP5-A2 files EP9-A2 files ALT Method comparison Bias evaluation |
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