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Laboratory evaluation of the CHROMagar KPC medium for identification of carbapenem-nonsusceptible Enterobacteriaceae

2011; Elsevier BV; Volume: 70; Issue: 4 Linguagem: Inglês

10.1016/j.diagmicrobio.2010.03.005

1879-0070

Jacob Moran‐Gilad, Yehuda Carmeli, David A. Schwartz, Shiri Navon‐Venezia,

Pharmaceutical and Antibiotic Environmental Impacts

CHROMagar KPC was evaluated with 53 carbapenem-nonsusceptible strains. KPC-producing Klebsiella pneumoniae and Enterobacter cloacae grew efficiently and yielded metallic blue colonies (100% sensitivity). Poor or no growth or atypical colony color were evident with KPC-producing Escherichia coli (71.4% sensitivity) and ertapenem-resistant KPC-nonproducing K. pneumoniae (72.7% sensitivity). CHROMagar KPC appears applicable for processing carbapenem-resistant Enterobacteriaceae surveillance specimens, but its performance might possibly be suboptimal in the presence of KPC-negative ertapenem-resistant strains or for detection of KPC-producing E. coli.