Limitations:
The Xpert Carba-R Assay detects IMP, KPC, NDM, OXA-48, and VIM genes from pure colonies and is not for bacterial identification.
The Xpert Carba-R Assay will generate a negative IMP result when testing samples containing IMP-7, IMP-13, or IMP-14 gene sequences.
Certain bacterial species, such as Pseudomonas aeruginosa and Acinetobacter baumannii have been shown to exhibit resistance to carbapenems due to intrinsic resistance mechanisms.
The detection of other OXA-carbapenemase genes, besides blaOXA-48 and blaOXA-181, has not been evaluated.