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Table 1 MIC50 and MIC90 of enterobacteriaceae (n = 21) and Pseudomonas aeruginosa (n = 3) obtained with Etest® compared to Vitek®

From: Rethinking urinary antibiotic breakpoints: analysis of urinary antibiotic concentrations to treat multidrug resistant organisms

Antibacterial agent MIC50 (µg/mL) MIC90 (µg/mL)
Etest® Vitek® Etest® Vitek®
Enterobacteriaceae (n = 21)
 Ciprofloxacin 32 4 32 4
 Ceftriaxone 0.16 1 256 64
 Cefepime 0.19 1 42 28
 Doripenem 0.047 0.25 1.9 16
Pseudomonas aeruginosa (n = 3)
 Ciprofloxacin 0.125 0.25
 Cefepime 2 1
 Doripenem 0.25 0.5