142 / 144 danmap 2015 142 terminology 10. esbl. in the danmap report, ?esbl? describes the clinically important acquired beta-lactamases with activity against extended-spectrum cephalosporins; including the classical class a esbls (ctx-m, shv, tem), the plasmid-mediated ampc and oxa-esbls [giske et al. 2009. j. antimicrob. chemother. 63: 1-4]. finishers.