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J Clin Microbiol. 2000 Aug;38(8):2870-2.

Detection of significant bacteriuria by automated urinalysis using flow cytometry.

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  • 1Department of Urology, Kobe University School of Medicine, Kobe, Japan. okada@med.kobe-u.ac.jp

Abstract

A new flow cytometry-based automated urine analyzer, the UF-50, was evaluated for its ability to screen urine samples for significant bacteriuria. One hundred eighty-six urine specimens from patients attending an outpatient clinic of a university-based hospital were examined. The results obtained with the UF-50 were compared with those obtained by conventional quantitative urine culture. The UF-50 detected significant bacteriuria with a sensitivity of 83.1%, a specificity of 76.4%, a positive predictive value of 62.0%, a negative predictive value of 90.7%, and an accuracy of 78.5%. These results are comparable to those obtained by previously reported screening procedures. Besides detecting significant bacteriuria, the UF-50 can also perform routine urinalysis, including measurement of concentrations of red blood cells, white blood cells, epithelial cells, and casts, within 70 s. This capability renders this new flow cytometry-based urine analyzer superior to previously reported rapid screening methods.

PMID:
10921941
PMCID:
PMC87132
[PubMed - indexed for MEDLINE]
Free PMC Article
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