Overview

Carbon monoxide poisoning is a life-threatening illness that happens after breathing in fumes that contain carbon monoxide (CO). When high levels of CO enter your body, it can be deadly after only a few minutes. The most common symptoms of CO poisoning are a headache and shortness of breath. Contact emergency services immediately if you suspect you have CO exposure.

What is carbon monoxide?

Carbon monoxide is an invisible, colorless and odorless gas produced when gasoline and other fuels burn (combustion). You can’t smell or taste it. CO can build up quickly and is dangerous at high levels.

Where does carbon monoxide come from?

Carbon monoxide is a byproduct of burning or the process of combustion. It’s made from:

  • Car and truck engines.
  • Small gasoline engines.
  • Fuel-burning space heaters (not electric).
  • Gas stoves or ranges.
  • Grills.
  • Lanterns.
  • Heating systems, including home furnaces.
  • Burning charcoal, kerosene, propane or wood.

How long does it take to get carbon monoxide poisoning?

In high concentrations of carbon monoxide, it can take fewer than five minutes to get carbon monoxide poisoning. Under lower concentrations, it can take an hour to two hours to cause poisoning.

How common is carbon monoxide poisoning?

Each year in the United States, accidental carbon monoxide poisoning kills more than 400 people. Carbon monoxide poisoning also sends an additional 100,000 people to emergency rooms annually.

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Symptoms

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Complications

Blood clots are a dangerous complication of atrial fibrillation (AFib). Blood clots can lead to stroke.
The risk of stroke from AFib increases as you grow older. Other health conditions also may increase the risk of a stroke due to AFib. These conditions include:
  • High blood pressure.
  • Diabetes.
  • Heart failure.
  • Some types of heart valve disease.
Blood thinners are commonly prescribed to prevent blood clots and strokes in people with atrial fibrillation.

Prevention

Healthy lifestyle choices can reduce the risk of heart disease and may prevent atrial fibrillation (AFib). Here are some basic heart-healthy tips:
  • Control high blood pressure, high cholesterol and diabetes.
  • Don't smoke or use tobacco.
  • Eat a diet that's low in salt and saturated fat.
  • Exercise at least 30 minutes a day on most days of the week unless your health care team says not to.
  • Get good sleep. Adults should aim for 7 to 9 hours daily.
  • Maintain a healthy weight.
  • Reduce and manage stress.


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