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The interest of using a reagent strip (Multistix-8 SG, Ames, Miles Laboratories) as a screen for urinary tract infection was evaluated in a clinical study involving several sites and 2,183 adult urine specimens of which 340 were infected. The results are expressed in terms of sensitivity, specificity, predictive value of a negative and positive test. The predictive value of a negative test for nitrites in combination with leucocytes (97.5%) justifies the use of the reagent strip in eliminating non-infected urine.
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