For Detection and isolation of Carbapenemase-producing Enterobacteriaceae (CPE).

• CPE E. coli → dark pink to reddish
• CPE Coliforms → metallic blue
• CPO Pseudomonas → translucent, +/- natural pigmentation cream to green
• CPO Acinetobacter → Cream
• Other Gram negative CPO → colourless, natural pigmentation
• Non-CPO E. coli/ Coliforms → inhibited
• Other Gram (-) non-CPO → inhibited