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An asthma trigger is a factor that can decrease lung function and lead to sudden difficulty breathing and other symptoms of an asthma attack. When you are around a trigger, you are at increased risk for an asthma attack. A severe attack may mean you have to go to the hospital.
Some triggers are substances you may be allergic to (allergens). These triggers may include:
Other triggers are not allergens—they can cause asthma symptoms, but you are not allergic to them. These include:
Test Your Knowledge
A trigger is anything that can lead to an asthma attack.
TrueA trigger is anything that can lead to an asthma attack. A trigger can be irritants in the air, substances to which you are allergic, or other factors, such as respiratory viruses, exercise, or dry, cold air.
FalseA trigger is anything that can lead to an asthma attack. A trigger can be irritants in the air, substances to which you are allergic, or other factors, such as respiratory viruses, exercise, or dry, cold air.
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Why identify asthma triggers?
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Asthma: Identifying Your Triggers
| By: | Healthwise Staff | Last Revised: March 17, 2011 |
| Medical Review: | E. Gregory Thompson, MD - Internal Medicine Lora J. Stewart | |
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