Course: Health Unit: Physical Health – Preventing Disease Section: Chronic Disease Tutorial: Asthma Location of Tutorial (unit, section, page): 4.4.4 <Health_4.4.3.1.1.mp3> “Asthma is a non-infectious disease of the airways that affects people of all ages. Asthma occurs when an allergen or other environmental trigger causes the airways to constrict, limiting airflow to the lungs. The exact causes of asthma are relatively unknown, but many people inherit asthma through genetics or develop asthma through environmental exposures. Some people inherit allergies from their parents; these allergies can trigger asthma symptoms or attacks.” <Health_4.4.3.1.2.mp3> “What are some of the signs and symptoms of asthma or an asthma attack? Click the button below for some answers.” <Health_4.4.3.2.1.mp3> “Since asthma reduces the amount of air a person can breathe in, someone with asthma might show some of these signs: shortness of breath, wheezing, tightness in the chest and coughing. If you see someone showing these signs, you should always approach the person to see if 911 needs to be called.” © KC Distance Learning <Health_4.4.3.3.1.mp3> “An asthma attack can be minor or major. Slight attacks cause shortness of breath and wheezing. Major attacks can result in hospitalization or death. An attack is often triggered by an activity or by something in the environment. Can you think of some possible triggers for asthma attacks? Click below to check your answers.” <Health_4.4.3.4.1.mp3> “Asthma can surface as an occasional brief attack, or it can be a lifetime condition. To treat short term attacks, doctors can prescribe inhalers that contain bronchodilators. Bronchodilators are drugs that help open up the muscles of the airways. For people suffering long term asthma, doctors often prescribe steroid pills or inhalers that help lessen the effects of periodic attacks and sometimes help a person avoid an attack altogether.” Pronunciation for bronchodilator: [brong-kohdahy-ley-ter, -di-] <Health_4.4.3.4.2.mp3> “On the next page, you will be able to test your understanding of asthma.” © KC Distance Learning