This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Microbiology
[{'content': 'Urease test is done for: March 2005, March 2013 \nSelect and explain. \nA. H.pylori, B. Proteus, C. Corynebacterium, D. Salmonella', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Ans. B: Proteus Urease test is done to distinguish Proteus organisms, which produce urea, from other enteric bacteria. When urea is broken down and ammonia released the pH of the medium becomes more alkaline, causing the pH indicator to turn pink. Urease breath test is done for H.pylori in which the subject drinks a urea solution containing labeled carbon,which can be detected in the breath. It is sensitive and reliable.', 'role': 'assistant'}]