Table 1.
Antimicrobial Agent | Zone Diameter (mm)Interpretive Criteria | VcoR-7 | Antimicrobial Agent | Zone Diameter (mm)Interpretive Criteria | VcoR-7 | ||||
---|---|---|---|---|---|---|---|---|---|
S * | I * | R * | Zone Diameter/Criteria | S | I | R | Zone Diameter/Criteria | ||
Ampicillin | ≥17 | 14–16 | ≤13 | 0/R | Imipenem | ≥23 | 20–22 | ≤19 | 26/S |
Amoxicillin-clavulanate | ≥18 | 14–17 | ≤13 | 16/I | Meropenem | ≥23 | 20–22 | ≤19 | 18/R |
Ampicillin-sulbactam | ≥15 | 12–14 | ≤11 | 11/R | Amikacin | ≥17 | 15–16 | ≤14 | 15/I |
Piperacillin | ≥21 | 18–20 | ≤17 | 0/R | Gentamicin | ≥15 | 13–14 | ≤12 | 15/S |
Piperacillin-tazobactam | ≥21 | 18–20 | ≤17 | 20/I | Tetracycline | ≥15 | 12–14 | ≤11 | 20/S |
Cefepime | ≥25 | 19–24 | ≤18 | 18/R | Ciprofloxacin | ≥21 | 16–20 | ≤15 | 25/S |
Cefotaxime | ≥26 | 23–25 | ≤22 | 21/R | Levofloxacin | ≥17 | 14–16 | ≤13 | 25/S |
Cefoxitin | ≥18 | 15–17 | ≤14 | 14/R | Ofloxacin | ≥16 | 13–15 | ≤12 | 22/S |
Ceftazidime | ≥21 | 18–20 | ≤17 | 15/R | Trimethoprim-sulfamethoxazole | ≥16 | 11–15 | ≤10 | 27/S |
Cefuroxime sodium | ≥18 | 15–17 | ≤14 | 19/S |
* S: susceptible, I: intermediate, and R: resistant.