He is brought to the ED by paramedics. He is awake and alert. He complains of a headache. His exam is unremarkable. Skin color is normal.
Neurologic exam is normal.
The nearest hyperbaric medicine unit is 2 hours away. Prevention by treatment with hyperbaric oxygen. A randomized controlled trial. The goal of this article was to objectively determine the efficacy of HBO in the treatment of acute CO intoxication. The study was randomized via envelopes, but was not blinded.