This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Urology, Subject name: Surgery
[{'content': 'Ohobaric oxygen is used in \nSelect and explain. \nA. Carbon monoxide poisoning, B. Ventilation failure, C. Anaerobic infection, D. Gangrene', 'role': 'user'}, {'content': 'Answer: A \nExplanation: .HYPERBARIC OXYGEN It is administration of oxygen 1 or 2 atmospheres above the atmospheric pressure in a compression chamber. It increases the aerial oxygen saturation so that oxygen perfusion of tissues will be increased.Indications 1. Carbon monoxide poisoning. 2. Tetanus, gas gangrene infections. 3. Bedsores, frostbites, necrotising fasciitis. 4. Drenching in paralytic ileus to reduce the nitrogen gas in distended bowel. 5. As a radiosensitizer in the treatment of cancer. ref:SRB&;s manual of surgery,ed 3,pg no 98', 'role': 'assistant'}]