We compared the performance of the Carba NP test and the ROSCO Rapid CARB Screen kit for the detection of carbapenemase-producing Enterobacteriaceae and Pseudomonas aeruginosa. Both tests are rapid and highly sensitive, however Carba NP test showed superior specificity and several uninterpretable results were observed with Rapid CARB Screen.
Huang, T.-D., Berhin, C., Bogaerts, P., & Glupczynski, G. (2014). Comparative evaluation of two chromogenic tests for the rapid detection of carbapenemase in Enterobacteriaceae and in Pseudomonas aeruginosa isolates. Journal of Clinical Microbiology, 52(8), 3060-3063. https://doi.org/10.1128/JCM.00643-14 (Original work published 2014)