Skip to main content

Table 4 MIC distributions for various antibiotics against 59 carbapenem-resistant P. aeruginosa isolates

From: Phenotypic characterization of the Egyptian isolates “extensively drug-resistant Pseudomonas aeruginosa” and detection of their metallo-β-lactamases encoding genes

Antibiotics No (cumulative%) of isolates at MIC (μg/ml) MIC50 MIC90 Range
1 2 4 8 16 32 64 128 256 512 ≥1024
Imipenem 3(5.08) 1(1.6) 5(8.4) 2(3.3) 8(13.5) 1(1.6) 2(3.3) 12(20.3) 25(42.3) 512 1024 8–1024
Meropenem 1(1.6) 1(1.6) 3(5.08) 1(1.6) 1(1.6) 5(8.4) 9(15.2) 5(8.4) 18(30.5) 15(25.4) 256 512 8–512
Ceftazidime 1(1.6) 4(6.7) 5(8.4) 1(1.6) 1(1.6) 4(6.7) 1(1.6) 1(1.6) 1(1.6) 40(67.7) ≥1024 ≥1024 2 to >1024
Levofloxacin 2(3.3) 6(10.1) 7(11.8) 20(33.8) 22(37.2) 2(3.3) 128 256 16–512
Gentamicin 3(5.08) 4(6.7) 3(5.08) 3(5.08) 46(77.9) >1024 >1024 8 to >1024