Asthma is a disease of the airways of the lungs. It is the most common respiratory disease characterized by episodes or attacks of inflammation, swelling, or narrowing of the small airways.
To diagnose asthma, a doctor will review the patient medical history, family history, looking for breathing problems, asthma in other family members, allergies, eczema, other lung conditions and symptoms. It is important that a person describe symptoms such as wheezing which is the result of narrowed or swollen airways. Coughing especially at night is the result of narrowed airways filled with mucous. Another symptom is chest tightness pain or pressure. Asthma can be an obstructive disease the asthmatic may inhale air and not have the ability to push the air out because of narrowed airways filled with mucous. The narrowed airways filled with mucous causes tightness, pain or pressure of the chest. Asthma can be a restrictive disease because the airways are so swollen or inflamed air cannot be inhaled into the airways causing shortness of breath. Symptoms vary from person to person and episode to episode.
A trigger is the body viewing of factors in the environment as harmful causing an increased sensitivity or inflammatory reaction of the airways. There are many triggers and reactions to them range. Asthmatics A¡¦s reaction to the same trigger may vary from one exposure to the next. A trigger that can be harmless to asthmatic A may provoke an inflammatory reaction in B asthmatic.
Allergic or extrinsic asthma is just as the name implies an allergic reaction. This response is airway obstruction and inflammation. This is partially reversible with medication. Allergic asthma is the most common form of asthma. 50% of the 20 million asthma sufferers are in... [continues]
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"What Is Asthma." StudyMode.com. 10, 2006. Accessed 10, 2006. http://www.studymode.com/essays/Asthma-97517.html.