Over 20,000 people are seen in the Emergency Room every year due to carbon monoxide exposure. Of those 20,000 people, children ages 4 and under are the most likely age group to be seen. Carbon monoxide poisoning is the most common cause of accidental poisoning-related deaths and is often called "the silent killer."
Carbon monoxide (CO) is a poisonous, colorless, tasteless, odorless gas that is produced from the incomplete burning of fuels that contain carbon, such as wood, charcoal, gasoline, coal, natural gas, or kerosene. Breathing carbon monoxide fumes decreases the blood's ability to carry oxygen. Low levels of oxygen can lead to cell death, including cells in the vital organs, such as the brain and heart. Persons with existing health problems, such as anemia, heart disease, and lung disease are especially vulnerable, as are unborn babies, infants, children, pregnant women, and elderly persons.
The majority of CO exposures occur in the winter months. The most common source of residential CO-related poisoning is unvented, supplemental heaters. An unvented supplemental heater is a type of space heater that uses indoor air for the heating process and vents the gases produced in the heating process out into the room. Thus, a space heater that is improperly installed or not functioning properly can introduce carbon monoxide and other toxic fumes into the room and use up much of the oxygen in the room.
Most supplemental heaters of this type use kerosene or natural gas for fuel. While newer models have oxygen sensors that shut off the heater when the oxygen level in the room falls below a certain level, older models do not have such safety features. Because of these safety problems, unvented space heaters have been banned in several states.
Other common sources of CO include the following:
Indoor charcoal grills
Faulty fireplaces and chimneys
Fuel burning equipment such as gasoline engines, gas logs, and gas space heaters
Faulty gas water heaters or clothes dryers
Gas appliances and heaters in cabins or campers, pools, and spas
The following are the most common symptoms of carbon monoxide poisoning. However, each child may experience symptoms differently. Some of the most common symptoms may include:
Weakness or clumsiness
Nausea and vomiting
Rapid or irregular heartbeat
Shortness of breath
Loss of hearing
Disorientation or confusion
Loss of consciousness or coma
Carbon monoxide poisoning mimics many common illnesses, such as the flu and food poisoning. Always consult your child's doctor for a diagnosis.
Depending on the length and severity of exposure, carbon monoxide fumes may cause permanent damage to the brain or heart and can even result in death. Seek emergency medical care immediately.
If your child or other family members have any symptoms of CO poisoning, stay calm but act quickly:
Leave the area and get fresh air immediately. Turn off the carbon monoxide source only if you can do so safely without endangering yourself or others.
Call 911 or your local emergency medical service (EMS).
If your child has stopped breathing, start CPR and do not stop until your child breathes on his or her own or someone else can take over. If you can, have someone call 911 right away. If you are alone, perform CPR for one minute and then call 911.
Further treatment for carbon monoxide exposure will be determined by your child's doctor. Emergency medical treatment may include oxygen therapy, blood tests, chest X-ray, and a heart and neurological evaluation.
According to the CDC, more than 400 people die unintentionally each year in the U.S. from carbon monoxide poisoning.
Important steps to protect against carbon monoxide poisoning include:
Have your furnace and fireplace cleaned and inspected before each heating season. Have other fuel burning appliances checked regularly.
Use nonelectrical space heaters only in well-ventilated areas.
Do not start or idle gas lawn mowers, cars, trucks, or other vehicles in an enclosed area, even with the garage doors open.
Vent fuel-burning appliances outside whenever possible.
Do not ever use a charcoal grill inside your home, garage, tent, or camper.
Do not use portable heaters or lanterns while sleeping in enclosed areas, such as tents, campers, and other vehicles. This is especially important at high altitudes, where the risk of CO poisoning is increased.
Read and follow manufacturer instructions and precautions that come with any fuel-burning device.
Do not ever use a gas oven for heat inside your home.
Use an approved carbon monoxide detector with an audible alarm inside your home.
When gasoline-powered generators are used to supply electricity, care should be taken to keep the generator a safe distance away from the home.