If You Suspect CO Poisoning or the CO Alarm Sounds
The most important thing to do if the CO alarm sounds or you suspect there may be exposure to CO, is to get everyone out of the house immediately.
Once out of the residence or building, you should make an assessment of everyone and any symptoms they may be experiencing. If anyone is experiencing symptoms, such as headaches, nausea, vomiting, irritability, angina, blurred vision, drowsiness, weakness, dizziness, fainting or severe headache, they should be taken to the hospital immediately. If you are experiencing any of these symptoms, have someone take you to the hospital. Anyone with a history of heart problems, who is pregnant or an infant has been exposed should be taken to the doctor immediately. It is most important if you are feeling any symptoms, you should not drive yourself or others to the hospital. Have someone else who is unaffected drive.
After immediate health concerns have been addressed, you should call your local gas company, fire department or appliance repair shop to come and find the source of the CO leak.
It is most important not to go back inside until the CO leak has been found and fixed.