Rapid test for detection of susceptibility to cefotaxime in Enterobacteriaceae.

[Rapid test for detection of susceptibility to cefotaxime in Enterobacteriaceae]. Rev Argent Microbiol. 2016 Dec 02;: Authors: Jiménez-Guerra G, Hoyos-Mallecot Y, Rodríguez-Granger J, Navarro-Marí JM, Gutiérrez-Fernández J Abstract In this work an "in house" rapid test based on the change in pH that is due to hydrolysis for detecting Enterobacteriaceae susceptible to cefotaxime is evaluated. The strains of Enterobacteriaceae from 1947 urine cultures were assessed using MicroScan panels and the "in house" test. This rapid test includes red phenol solution and cefotaxime. Using MicroScan panels, 499 Enterobacteriaceae isolates were evaluated, which included 27 isolates of Escherichia coli producing extended-spectrum beta-lactamases (ESBL), 16 isolates of Klebsiella pneumoniae ESBL and 1 isolate of Klebsiella oxytoca ESBL. The "in house" test offers the following values: sensitivity 98% and specificity 97%, with negative predictive value 100% and positive predictive value 78%. The "in house" test based on the change of pH is useful in our area for detecting presumptively cefotaxime-resistant Enterobacteriaceae strains. PMID: 27919513 [PubMed - as supplied by publisher]
Source: Revista Argentina de Microbiologia - Category: Microbiology Tags: Rev Argent Microbiol Source Type: research

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