May require contact precautions if highly resistant.
ESBLs vs. AmpC: Most ESBLs are plasmid-encoded, whereas AmpCs are usually inducible and chromosomal.
In the lab, AmpCs test resistant to cefoxitin and cefotetan. They test susceptible to aztreonam.
SPICEM stands for Serratia, Pseudomonas and Providencia, (Indole positive) Proteus mirabilis, Citrobacter, Enterobacter, and Morganella.