Urease broth is a differential medium that tests the ability of an organism to produce an exoenzyme, called urease, that hydrolyzes urea to ammonia and carbon dioxide. The broth ...

The best way to memorize urease positive organisms is using the pnemonic ‘PUNCH’ P-Proteus U-Ureaplasma N-Nocardia C-Cryptococcus H-Helicobacter