Because signs and symptoms of CO poisoning are not specific, a blood test to look for carbon monoxide is the best way to make the diagnosis. The treatment for CO poisoning is high-dose oxygen, usually using a facemask attached to an oxygen reserve bag. The CO levels in the blood may be checked periodically until they are low enough to safely send you home. In severe poisoning, a pressure chamber may be used, if available, to give even higher doses of oxygen. Your local fire department or public service company will help find the source of CO and make sure the building is safe.
Death can result from severe cases.
Even with proper treatment, some people will develop long-term brain damage, resulting in such things as severe memory loss, difficulty thinking, and difficulty moving muscles. Others appear to have no long-term problems. It works much like a home smoke alarm and beeps loudly when the sensors detect carbon monoxide. If the alarm sounds, evacuate the building. People who have symptoms of CO poisoning should seek emergency medical care.