Escherichia coli producing constitutive AmpC. ESBL-negative, carbapenemase-negative.
| AMP | Ampicillin | AMC | Amoxicillin/Clavulanate | CXM | Cefuroxime | SXT | Trimethoprim-Sulfamethoxazole |
| CIP | Ciprofloxacin | FOS | Fosfomycin | NFE | Nitrofurantoin |
| FOX | Cefoxitin | COX | Cefotaxime | GMN | Gentamicin | MEM | Meropenem |
| AKN | Amikacin | PTZ | Piperacillin/tazobactam | TGC | Tigecycline | ||