The effects of quality-management systems on external quality-assessment performance in Finnish clinical chemistry laboratories
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- 作者：Maritta Siloaho (1) maritta.siloaho@uku.fi
Solveig Linko (2)
Eino Puhakainen (2)
Ulla-Riitta Nordberg (3) - 关键词：Analytical quality ; Quality improvement ; Quality ; management system ; External quality assessment
- 刊名：Accreditation and Quality Assurance ; Journal for Quality ; Comparability and Reliability in Chemical Measurement
- 出版时间：June 2006
- 出版年：2006
- 期刊代码：pc310_0949-1775
- 类别：ch
- 卷：11
- 期：5
- 页码：238-245
- 数据来源：sp
摘要
The effects of the implementation of quality-management systems and technological changes on the performance of 23 Finnish clinical chemistry laboratories were studied in external quality-assessment (EQA) schemes organized by Labquality Ltd., Finland, during 1993 to 1999. The investigated serum analytes were sodium, calcium, glucose, cholesterol, and alanine aminotransferase. According to the results, the improvements in analytical quality due to the quality programs were rather small. The effects to the proportions of satisfactory results in terms of precision and deviation from the target value were 5–15%(95%confidence intervals for the proportions 卤1–5%). At the same time the laboratories were implementing quality-management systems new technology and characteristics of quality-control materials affected the EQA performance. Both improvements and deteriorations in analytical quality due to these factors were identified. The effects and their total outcomes differed substantially between the five analytes.