Carbon Monoxide Poisoning

When To Call a Doctor

Call911or other emergency services immediately if:

  • You have symptoms of carbon monoxide poisoning, such as a headache, nausea, or dizziness, and carbon monoxide poisoning is suspected.
  • A person has symptoms of carbon monoxide poisoning and appears to be very confused or disoriented or complains of chest pain. Leave the area of exposure before calling.
  • A person is found unconscious after exposure to carbon monoxide. Take him or her out of the house, building, vehicle, or area where the gas is present.

Call your health professional if:

  • You have any changes in vision, coordination, or behaviour in the weeks after treatment for carbon monoxide poisoning.

What to do if your carbon monoxide detector sounds the alarm

Tell everyone in the house or building to get out. Call the fire department or your local utility company from a nearby phone.

The fire department or utility company can check the carbon monoxide levels in the house or building and identify any problem. If high levels of carbon monoxide are found in the building, call and discuss the situation with your health professional.

Watchful Waiting

Watchful waiting is not appropriate if carbon monoxide poisoning is suspected. Call 911 or your health professional.

Who To See

The following health professionals can evaluate symptoms of carbon monoxide poisoning:

To evaluate delayed or long-term symptoms of carbon monoxide poisoning, you may be referred to a:

To prepare for your appointment, see the topic Making the Most of Your Appointment


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Author: Douglas Dana
Sabra L. Katz-Wise
Last Updated: June 12, 2006
Medical Review: Adam Husney, MD - Family Medicine
Tom Bailey, MD - Family Medicine
R. Steven Tharratt, MD, MPVM, FACP, FCCP - Pulmonology, Critical Care, Medical Toxicology

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Topic Contents
 Topic Overview
 Cause
 Symptoms
 What Happens
 What Increases Your Risk
Arrow PointerWhen To Call a Doctor
 Examinations and Tests
 Treatment Overview
 Prevention
 Home Treatment
 Medications
 Surgery
 Other Treatment
 Other Places To Get Help
 Related Information
 References
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