Occupational asthma
Occupational asthma is a type of asthma that is caused by inhaling certain substances in the workplace. These substances, known as asthmagens, can cause the airways to become inflamed and narrowed, leading to symptoms such as wheezing, coughing, chest tightness, and shortness of breath.
Causes[edit | edit source]
Occupational asthma can be caused by a wide range of substances, including:
- Dust from wood, grain, or textiles
- Chemicals used in manufacturing, such as isocyanates, anhydrides, and amines
- Animal dander, urine, or proteins
- Enzymes used in detergents or pharmaceuticals
- Metals, such as platinum, chromium, and nickel sulfate
- Plants, such as latex, flour, and certain types of grain
Symptoms[edit | edit source]
The symptoms of occupational asthma are similar to those of other types of asthma, and can include:
Diagnosis[edit | edit source]
Occupational asthma can be diagnosed by a doctor based on a person's symptoms, medical history, and the results of certain tests. These tests can include:
- Spirometry, a test that measures how much air a person can breathe in and out, and how quickly
- Peak flow monitoring, a test that measures how quickly a person can exhale
- Allergy testing, to determine if a person is allergic to certain substances
- Bronchial provocation testing, to see how a person's airways respond to specific substances
Treatment[edit | edit source]
The primary treatment for occupational asthma is to avoid exposure to the substance that is causing the symptoms. This may involve changing jobs or tasks, or using protective equipment. Medications may also be used to manage symptoms, including:
- Bronchodilators, which help to open the airways
- Inhaled corticosteroids, which help to reduce inflammation in the airways
- Leukotriene modifiers, which help to prevent asthma symptoms
Prevention[edit | edit source]
Prevention of occupational asthma involves reducing exposure to asthmagens in the workplace. This can be achieved through:
- Substitution, replacing a hazardous substance with a less hazardous one
- Isolation, separating the worker from the hazardous substance
- Ventilation, removing the hazardous substance from the air
- Personal protective equipment, such as respirators
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Contributors: Prab R. Tumpati, MD
