escappm escappm escappm or eschappm is a mnemonic for the organisms with inducible beta-lactamase activity that is chromosomally mediated. e: enterobacter spp. s: serratia spp. c: citrobacter freundii h: hafnia spp. a: aeromonas spp. p: proteus spp. (excluding p. mirabilis) 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.