At the invitation of the Clinical Sciences Reviews Committee of the Association of Clinical Biochemists, Dr. Westgard prepared an overview of Internal Quality Control. This 19-page paper covers the concepts of QC, "Westgard Rules," outlines a Planning process, and explains how to access and use practical tools. Recommendations for implementation, questions and answers, a glossary, and more are also provided. For those just starting to learn about QC or IQC, this is a thorough introduction. For others more familiar with the concepts, here is a compact distillation of the state of the art .
The Annals of Clinical Biochemistry, specifically ingenta select, have been gracious and are now allowing free downloads of this paper. You can download the paper directly from their website at http://isacco.ingentaselect.com/vl=975790/cl=55/nw=1/rpsv/cw/rsm/00045632/v40n6/s2/p593
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Please note: This paper is available as a *.pdf file. You will need to Adobe Acrobat Reader (free) to view it.