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Modified Carba NP test for the detection of carbapenemase production in gram-negative rods: optimized handling of
Eloiza H Campana1, Stephanie G Chuster1, Isadora R da Silva1
1Universidade Federal do Rio de Janeiro, Instituto de Microbiologia Paulo de Góes, Laboratório de Investigação em Microbiologia Médica, Rio de Janeiro, Brazil.
Abstract:
The modified Carba NP test presented here may be a valuable tool for laboratories interested in investigating a large number of carbapenemase-producing bacteria in a less-costly way. The test was evaluated against 48 carbapenemase-producing and carbapenemase-non-producing gram-negative bacteria. No false-positive results were obtained, but false-negative results were observed with OXA-23- and GES-carbapenemase-producing isolates. Aeromonas sp. are not testable by Modified Carba NP.
