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Comparative Study
. 1976 May;9(5):804-9.
doi: 10.1128/AAC.9.5.804.

Comparison of direct and standardized disk diffusion susceptibility testing of urine cultures

G E Hollick, J A Washington 2nd
Comparative Study

Comparison of direct and standardized disk diffusion susceptibility testing of urine cultures

G E Hollick et al. Antimicrob Agents Chemother. 1976 May.

Abstract

A comparison between direct and standardized disk diffusion tests was made on a total of 300 urine specimens containing >/=10(5) organisms/ml. Of these, 246 represented pure cultures and 54 represented mixed cultures. The number of major discrepancies per organism tested in pure culture was 18 (7.3%) and in mixed cultures it was 23 (42.6%). The percentage of major discrepancies per total number of antimicrobial drug comparisons made was 1.4%. Although this procedure may be of value in selected cases with pure cultures of organisms present in quantities >/=10(5)/ml, its use on a routine basis is not recommended.

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References

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    1. Am J Clin Pathol. 1966 Apr;45(4):493-6 - PubMed
    1. Am J Clin Pathol. 1973 May;59(5):693-9 - PubMed
    1. J Urol. 1973 Oct;110(4):452-6 - PubMed
    1. JAMA. 1975 Aug 4;233(5):458-62 - PubMed

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