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Creatinine and surveys: an assessment
B G Blijenberg1, R J Brouwer, H Baadenhuijsen
1Department of Clinical Chemistry, University Hospital Rotterdam-Dijkzigt, The Netherlands.
Abstract:
We analysed the results of surveys on creatinine held in The Netherlands during the years 1992, 1993 and 1994. Assay results of 113 samples were reviewed: 88 human sera and 25 samples of animal origin. The results of 5 creatinine assays, 4 based on the Jaffé reaction and 1 enzymatic procedure, are discussed. The enzymatic assay showed by far the best performance, while some of the Jaffé methods differed considerably. All results were evaluated by reference to a HPLC-based selected method for creatinine. Our study shows the need for caution when applying survey performance criteria for creatinine.
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