- E: Enterobacter spp.
- S: Serratia spp.
- C: Citrobacter freundii
- H: Hafnia spp.
- A: Aeromonas spp.
- P: Proteus spp. (P. vulgaris)
- P: Providencia spp.
- M: Morganella morganii
In vitro sensitivities are not applicable in vivo.
In general, treatment with cephalosporins results in inducible beta-lactamase activity. Treatment with an aminoglycoside or carbapenem is usually indicated. Carbapenems are a class of beta-lactam antibiotics with a broad spectrum of antibacterial activity. They have a structure that renders them highly resistant to beta-lactamases. Examples of Carbapenems include meropenem and imipenem.
- "Feedback for Practical 10: Antimicrobial Agents". Archived from the original on July 23, 2005. Retrieved 2010-01-26.