TABLE 2.
Comparison of the direct colorimetry method with Rapidec Carba NP for selected strains
| Strain | β-lactamase(s) | Direct colorimetry result | Carba NP result/color |
|---|---|---|---|
| K. pneumoniae LA30 | VIM-1 | Positive | Positive/yellow |
| E. coli TZ116 | VIM-1, CMY-13 | Positive | Positive/yellow |
| P. mirabilis EUG91 | VIM-1, VEB-1 | Positive | Positive/yellow |
| K. pneumoniae 2489 | NDM-1/CTX-M | Positive | Positive/yellow |
| K. pneumoniae LA28 | NDM-1/CTX-M | Positive | Positive/yellow |
| K. aerogenes 7362 | NDM-1 | Positive | Positive/yellow |
| K. pneumoniae E971 | KPC-2, SHV-5 type | Positive | Positive/yellow |
| K. pneumoniae E1370 | KPC-2 | Positive | Positive/yellow |
| E. coli LAR548 | KPC-2 | Positive | Positive/yellow |
| K. pneumoniae ALX47 | OXA-48, CTX-M-15 | Positive | Positive/orange |
| K. pneumoniae LAR478 | OXA-48, CTX-M-15 | Positive | Positive/orange |
| K. pneumoniae TRK1 | OXA-48, CTX-M-15 | Negative | Negative/red |
| K. pneumoniae TRK5 | OXA-48, CTX-M-15 | Positive | Negative/red |
| K. pneumoniae EY-205 | CMY-36/SHV-5 | Negative | Positive/orange |
| K. pneumoniae 17829 | CTX-M-15/SHV-12 | Negative | Positive/orange |
| K. aerogenes EY-25 | LAT-2/SHV-5 | Negative | Negative/red |
| E. cloacae EY 138 | Derepressed AmpC | Negative | Negative/red |
| E. coli IK33 | CTX-M-15 | Negative | Negative/red |