External quality assessment of assays of lead in blood.
نویسندگان
چکیده
The operation and results of the United Kingdom External Quality Assessment Scheme for Lead in Blood, which currently has about 140 participants within and outside the U.K. are described. The choice of specimens, scheme design, and scoring of performance are discussed, as is the validity of the consensus values used as a basis for the scoring. There has been a continued improvement in performance as assessed by this program, some of which appears to have been stimulated by the introduction of Variance Index scoring. The relative performance of the methods for assaying lead in blood is also examined.
منابع مشابه
Comparison of procedures for evaluating laboratory performance in external quality assessment schemes for lead in blood and aluminum in serum demonstrates the need for common quality specifications.
BACKGROUND The different scoring methods used by eight European External Quality Assessment Schemes (EQASs) for occupational and environmental laboratory medicine were compared to develop suitable quality specifications as a step toward harmonization. METHODS Real results for blood lead and serum aluminum assays, reported by participants in Italian and United Kingdom EQASs, were evaluated acc...
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عنوان ژورنال:
- Clinical chemistry
دوره 32 10 شماره
صفحات -
تاریخ انتشار 1986