From: Detection of carbapenemase-producing Enterobacteriaceae in rectal surveillance cultures in non-hospitalized patients
Microorganism
Typical colony appearance
E.coli
Dark pink to redish
Klebsiell, Enterobacter, Citrobacter
Metallic blue
Pseudomonas
Cream, translucent
Carbapenem sensitive strains
Inhibited
Gram + ve strains
Yeasts
Mostly inhibited