Glenn G C
Am J Clin Pathol. 1980 Oct;74(4 Suppl):531-4.
Thirteen analytes were presented for participant analysis during the year 1979. Included were amylase, calcium, phosphorus, sodium, potassium, creatinine, osmolality, total protein, glucose, urea nitrogen, 17-ketosteroids, 17-ketogenic steroids, and vanillylmandelic acid. A urine protein standard was provided, and approximately half of participating labs used it. The severe biases demonstrated in past years between urine protein analytic methods was eliminated, and interlaboratory precision was greatly improved. Among labs not choosing to use the standard, poor interlaboratory precision and severe bias between methods persisted. Elevation of sodium and calcium concentration to levels simulating human disease resulted in significantly poorer analytic performance.
1979年有13种分析物供参与者进行分析。其中包括淀粉酶、钙、磷、钠、钾、肌酐、渗透压、总蛋白、葡萄糖、尿素氮、17-酮类固醇、17-生酮类固醇和香草扁桃酸。提供了尿蛋白标准品，约一半的参与实验室使用了该标准品。过去几年尿蛋白分析方法之间存在的严重偏差得以消除，实验室间精密度得到极大提高。在未选择使用该标准品的实验室中，实验室间精密度差以及方法之间存在严重偏差的情况依然存在。将钠和钙浓度提高到模拟人类疾病的水平会导致分析性能显著变差。
