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Occupational asthma develops when a person is exposed to a particular inhaled substance in the workplace. The term refers to new cases of asthma. But workplace exposure to substances that cause airway irritation or inflammation can make asthma worse in people who already have the condition. About 10% of adult asthma is classified as occupational asthma.1
Occupational asthma is the most common form of work-related lung disease in many countries. When a person develops asthma as an adult, occupational exposure is a likely cause.
There are some things that may cause occupational asthma and certain professions in which people might be exposed to them. These include:
People who have occupational asthma usually have symptoms during the workweek, such as coughing, wheezing, and chest tightness. These may develop hours after leaving the workplace. Symptoms generally improve during weekends and vacations.
The diagnosis of occupational asthma requires detailed documentation of exposure to irritants or allergens in the workplace and evidence that these substances are causing symptoms. In a test called specific inhalation challenge, you are exposed to a small amount of a possible workplace irritant or allergen. Lung function is then measured to find out whether the substance is the cause of symptoms.
Treatment of occupational asthma consists of:
You may need to change your job if your symptoms do not improve even when you avoid possible triggers and take medicines. Talk with your doctor or asthma specialist before changing your job.
|Primary Medical Reviewer||E. Gregory Thompson, MD - Internal Medicine|
|Specialist Medical Reviewer||Rohit K Katial, MD - Allergy and Immunology|
|Last Revised||February 22, 2013|
Last Revised: February 22, 2013
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