Research Article
Comparative Evaluation of the Inhibitory Effect of Some Essential Oils with Antibiotics against Pseudomonas aeruginosa
Table 1
Susceptibility pattern of Pseudomonas aeruginosa to tested antibiotics.
| Antibiotic | Disc content |
Inhibition zone diameter (mm) |
Zone diameter breakpoints according to CLSI* guidelines |
Sensitivity pattern | S | I | R |
| Piperacillin | 100 μg | 15 | ≥18 | — | ≤17 | Resistant | Cefepime | 30 μg | 30 | ≥18 | 15–17 | ≤14 | Susceptible | Meropenem | 10 μg | 34 | ≥16 | 14-15 | ≤13 | Susceptible | Gentamicin | 10 µg | 29 | ≥15 | 13-14 | ≤12 | Susceptible | Norfloxacin | 10 µg | 31 | ≥17 | 13–16 | ≤12 | Susceptible |
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*CLSI: Clinical and Laboratory Standards Institute.
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