For detection of Colistin resistant Gram-negative pathogens.
- COL-R E. coli → dark pink to reddish
- COL-R Coliforms → metallic blue
- COL-R Pseudomonas → translucent, +/- natural pigmentation cream to green
- COL-R Acinetobacter → cream
- Other Gram negative COL-R → colourless, natural pigmentation
- Other Gram negative COL-S → inhibited
- Other gram positive bacteria → inhibited