[anila]

Every one knows the famous mnemonic for urease positive organisms = PUNCH

P = Proteus

U = Ureaplasma

N = Nocardia

C = Cryptococcus

H = H.pylori

so it would be easy to remember the important oxidase positive organisms if we replace "U" of PUNCH by "V"

so PVNCH for Oxidase positive organisms;

P = Pseudomonas

V = Vibrio

N = Nisseria

C = Compylobacter

H = H.pylori

(Also don't forget that most gram negatives in general are Oxidase positive minus enterobacteriacea family)