Prepared sterile multimedia tube for rapid differential identification of Gram-negative bacteria ( Enterobacteriaceae ) Self-contained, sterile, compartmented plastic tube contains twelve different conventional media plus a self-contained inoculating wire Subsequent performance of 15 biochemical tests (glucose, gas production, lysine decarboxylase, ornithine decarboxylase, H 2 S, indole, adonitol, lactose, arabinose, sorbitol, Voges-Proskauer, dulcitol, phenylalanine deaminase, urea and citrate) from a single bacterial colony together with the Interpretation Guide (order separately) allow identification of Enterobacteriaceae Innoculation of all 12 media occurs simultaneously Order Info Package contains 25 tubes.