For isolation and differentiation of urinary tract pathogens.

• E. coli → dark pink to reddish
• Enterococcus → turquoise blue
• Klebsiella, Enterobacter, Citrobacter → metallic blue
• Proteus → brown halo
• Pseudomonas → cream, translucent
• S. aureus → golden, opaque, small
• S. saprophyticus → pink, opaque, small