使用能力指数来提高实验室分析性能。
Use of Capability Index to improve laboratory analytical performance.
作者信息
Bais Renze
机构信息
Pacific Laboratory Medicine Services (PaLMS), Northern Sydney Central Coast Health, Royal North Shore Hospital, St Leonards, Sydney, NSW 2065, Australia.
出版信息
Clin Biochem Rev. 2008 Aug;29 Suppl 1(Suppl 1):S27-31.
Abstract
- For detection of errors where the standard deviation is wide compared to clinical requirements, consider use of the Capability Index (Cps). * Cps is defined as 'Allowable Limit of Error divided by the standard deviation of between-batch QC measurement'. * 'Capable' assays have Cps >4 compared with 'incapable' ones with Cps <4. * Capability of an analyte can be used to optimise the amount of quality control (QC) required and still maintain appropriate error detection. * For EQA material, Cps can be used for continuously monitoring individual analytes, comparing laboratory performance with peers and comparison with industry-wide performance. * The capability approach can result in reducing the number of QCs run per day, reducing costs as well as significantly improving the performance of a number of assays.
摘要
对于标准差与临床要求相比差异较大时的误差检测，可考虑使用能力指数（Cps）。
Cps的定义为“允许误差极限除以批次间质量控制测量的标准差”。
“合格”检测方法的Cps>4，而“不合格”检测方法的Cps<4。
分析物的能力可用于优化所需的质量控制（QC）量，同时仍保持适当的误差检测。
对于室间质量评价（EQA）材料，Cps可用于持续监测单个分析物，将实验室性能与同行进行比较，并与全行业性能进行比较。
能力方法可减少每天进行的质量控制检测数量，降低成本，并显著提高许多检测方法的性能。
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Power functions for statistical control rules.统计控制规则的功效函数。
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