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J Lab Med Qual Assur. 2010 Jun;32(1):69-93. Korean. Note.
Kim KD , Koo SH , Kim EC , Kim JM , Kim JH , Kim JQ , Moon DS , Min WK , Jeon CH , Park SH , Koo JI , Kim MJ , Bae YC , Song WH , Cho KH , Cho SS .
The Urinalysis & Routine Microscopy Subcommittee, The Korean Association of Quality Assurance for Clinical Laboratory, Seoul, Korea.

Three external quality assesment trials which composed of 16 control materials(12 chemical materials and four sets of microscopic photograph of urinary sediment) for interlaboratory quality control assesment in urinalysis were performed with 796, 823, and 841 participants, in each, in the year of 2009. The response rate were 97.1% (796/820), 95.5% (823/862) and 97.1% (841/866), in the first, the second and the third trials, in each. The test items include pH, glucose, protein, ketone, bilirubin, blood, urobilinogen, nitrite, leukocyte estrase, specific gravity and four microscopic photographs of urinary sediment. The survey results are summarized as follows: 1. The chemical quality control test in urinalysis revealed generally good concordance. 2. The percentage of using urinalysis analyzer was slightly decreased as 82.3% and the distribution of using reagent strip was similar to the previous year. 3. The percentage of response rate of microscopic photographs of urinary sediment was 83.5% (702/841) and the percentage of good performance of these tests ware 83.6% to 99.1%.

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