Sigma Metrics Across the Total Testing Process
1Laboratory Department, Bumrungrad International Hospital, 33 Sukhumvit 3, Bangkok 10110, Thailand.
Abstract:
Laboratory quality control has been developed for several decades to ensure patients' safety, from a statistical quality control focus on the analytical phase to total laboratory processes. The sigma concept provides a convenient way to quantify the number of errors in extra-analytical and analytical phases through the defect per million and sigma metric equation. Participation in a sigma verification program can be a convenient way to monitor analytical performance continuous quality improvement. Improvement of sigma-scale performance has been shown from our data. New tools and techniques for integration are needed.
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