Antimicrobiala | MIC (mg/L) | MIC breakpoint (mg/L) | Interpretation | |
Susceptible ≤ | Resistant > | |||
Cefepime | ≥32 | 4 | 8 | Resistant |
Piperacillin | ≥128 | 4 | 16 | Resistant |
Piperacillin/Tazobactam | ≥128 | 4 | 16 | Resistant |
Ticarcillin/Clavulanic acid | ≥128 | 8 | 16 | Resistant |
Ciprofloxacin | ≤0.25 | 0.5 | 1 | Susceptible |
Levofloxacin | 0.25 | 1 | 2 | Susceptible |
Meropenem | ≥16 | 2 | 8 | Resistant |
Gentamicin | 8 | 4 | 4 | Resistant |
Amikacin | ≥64 | 8 | 16 | Resistant |
Tobramycin | ≥16 | 4 | 4 | Resistant |
Colistin | ≥16 | 4 | 4 | Resistant |
Antimicrobialb | Inhibition diameter (mm) | Zone diameter breakpoint (mm) | Interpretation | |
Susceptible ≥ | Resistant < | |||
Ceftazidime | 6 | 17 | 17 | Resistant |
Cefepime | 12 | 19 | 19 | Resistant |
Trimethoprim/Sulfamethoxazole | 24 | 16 | 16 | Susceptible |
Amikacin | 13 | 18 | 15 | Resistant |
Gentamicin | 14 | 15 | 15 | Resistant |
Imipenem | 6 | 20 | 17 | Resistant |
Meropenem | 6 | 24 | 18 | Resistant |
Levofloxacin | 27 | 20 | 17 | Susceptible |
Ciprofloxacin | 28 | 25 | 22 | Susceptible |