The BBL™ Prompt™ Inoculation System is used to prepare standardized suspensions of bacteria for the Bauer-Kirby disc diffusion antimicrobial susceptibility test procedure. The system may be used for rapidly growing bacteria such as Enterobacteriaceae, Staphylococcus spp., Pseudomonas aeruginosa, Acinetobacter spp., enterococci and some nonenterococcal streptococci. It also may be used for Haemophilus influenzae.