Table 1 Interpretive Standard for β-lactam antibiotics according to the CLSI form M100-S23
Antibiotics | Breakpoint MIC (μg/mL) | ||
|---|---|---|---|
Susceptible (S) | Intermediate (I) | Resistant (R) | |
Penicillin (PEN) | ≤0.06 | 0.12–1 | ≥2 |
Amoxicillin (AMO) | ≤2 | 4 | ≥8 |
Meropenem (MER) | ≤0.25 | 0.5 | ≥1 |
Cefotaxime (TAX) | ≤0.5 | 1 | ≥2 |
Ceftriaxone (CFT) | ≤1 | 2 | ≥4 |
Cefuroxime (CFX) | ≤0.5 | 1 | ≥2 |