Asthma is a disease that affects the lungs and usually stems from three dinamics that are physical and environmental in nature . The first trigger that occures during an asthma attack is is an increase in histamine . Histamine is an immune modulator that increases when the organ system in this case the resperatory system detects an antigen in the environment ; such as polen . The second is a physical response to histamine ; the resperatory system reacts bu producing mucus to capture environmental particles ; and the third dinamic is trachial lumen decrease from within and an increase in mucus occuring simultaniously that accounts for the distinctive wheezing sound in the chest (Parker, 2013).
Triggers that exscerbate an asthma attack include airbourn allergens , airway infections , airbourn irritants , and exercise . Populations most at risk are children , women , black and multirace Americans and American Indians . The CDC National Asthma Control Program was commenced in 2011 to address growing cases of asthma which were estimated at 7.1 million with 3,404 visits to the emergency room that resulted in 21 million dollars in health care revenue (CDC.gov,2017) . The number of reported cases has steadily increased since 1980 with the most rapid growth occuring from 1980 to 1996 . In 2007 20 million people ages 1 to 14 had asthma . The economic impact related to medical expenditures for treating asthma increased from 48.6 billion to 50.1 billion about 3,300 per person with asthma diagnosis per year .
References
Parker, S (2013) The Body Book . Med Motion
CDC(2017) National Asthma Control Program . Retrieved from http://www.cdc.gov/asthma /nwep.html
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