Modified Carba NP test for the detection of carbapenemase production in gram-negative rods: optimized handling of multiple samples

Campana, Eloiza HChuster, Stephanie GSilva, Isadora R. daPaschoal, Raphael PBonelli, Raquel RMoreira, Beatriz MPicão, Renata C

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 falsepositive 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.(AU)

1. Diagnostics
2. Carbapenemases
3. eniaiaiaia