One vs. Three Hyperbaric Oxygen Treatments for Acute Carbon Monoxide Poisoning

"Before patients are offered an opportunity to participate in this study, they will receive a single hyperbaric oxygen session. During the first session, hyperbaric oxygen will be administered at 3.0 atmospheres absolute (atm abs) for 25 minutes breathing oxygen, 5 minutes air breathing, 25 minutes oxygen breathing, 5 minutes air breathing, pressure reduced to 2.0 atm abs for 30 minutes breathing oxygen, 5 minutes air breathing, and 30 minutes oxygen breathing.~For the second and third hyperbaric oxygen sessions, the subject will breathe 100% oxygen delivered at 2 atm abs for 90 minutes with two 5-minute air breathing periods."

"During the first session, hyperbaric oxygen will be administered at 3.0 atmospheres absolute (atm abs) for 25 minutes breathing oxygen, 5 minutes air breathing, 25 minutes oxygen breathing, 5 minutes air breathing, pressure reduced to 2.0 atm abs for 30 minutes breathing oxygen, 5 minutes air breathing, and 30 minutes oxygen breathing.~The second and third chamber sessions are sham sessions: room air delivered at 1.0 atmospheres absolute for 90 minutes with two sham 5-minute air breathing periods."