<prompt> Hyperbaric oxygen therapy is indicated for treatment of?CO poisoningCaisson diseaseGas gangreneAll  <response>: Hyperbaric oxygen therapy uses a pressurized chamber to expose the patient to oxygen tensions exceeding ambient barometric pressure at sea level the ambient pressure is 760 mm Hg. Common indications for hyperbaric oxygen include decompression sickness the bends, ceain forms of gas embolism, gas gangrene, carbon monoxide poisoning, and treatment of ceain wounds. 