Spectrum: Local Antimicrobial Stewardship, for Billings Clinic

Meropenem - Antibiogram Data

Billings Clinic
% of Isolates Susceptible

Serratia marcescens100%
n = 38
Proteus mirabilis100%
n = 205
Citrobacter freundii100%
n = 95
Klebsiella species100%
n = 973
Enterobacter cloacae100%
n = 187
Escherichia coli100%
n = 4800
Pseudomonas aeruginosa99%
n = 331

Please note that quinolones do NOT provide adequate empiric therapy for serious gram-negative infections. Quinolones do not extend coverage over empiric β-lactams. Continued overuse is driving resistance.