Spectrum: Local Antimicrobial Stewardship, for Providence Health Care

Serratia marcescens - Antibiogram Data

Gram-Negatives
% of Isolates Susceptible

Antibiogram
Trimethoprim-sulfamethoxazole100%
n = 147
Antibiogram
Piperacillin-Tazobactam100%
n = 147
Antibiogram
Meropenem100%
n = 147
Antibiogram
Gentamicin100%
n = 147
Antibiogram
Ciprofloxacin100%
n = 147
Antibiogram
Ceftriaxone100%
n = 147
Antibiogram
Tobramycin96%
n = 147
Antibiogram
AmpicillinR
n = 147
Antibiogram
CefazolinR
n = 147

Cefazolin predicts results for oral cephalosporins in patients with uncomplicated UTI

Antibiogram
NitrofurantoinR
n = 147

Urine isolates only

Note

Organisms producing AmpC β-lactamases may develop resistance during prolonged therapy with 3° cephalosporins