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پاورپوینت در مورد Ashtma
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دسته بندی : پاورپوینت
نوع فایل : powerpoint (..ppt) ( قابل ويرايش و آماده پرينت )
تعداد اسلاید : 51 اسلاید
قسمتی از متن powerpoint (..ppt) :
airflow obstruction that varies markedly , both spontaneously and with treatment.
i nflammation in the airways that makes them more responsive than nonasthmatics to a wide range of triggers
excessive narrowing with consequent reduced airflow and symptomatic wheezing and dyspnea.
10–12% of adults and 15% of children
Asthma can present at any age, with a peak age of 3 years.
In childhood, twice as many males as females are asthmatic, but by adulthood the sex ratio has equalized
many with asthma become asymptomatic during adolescence but that asthma returns in some during adult life, particularly in those with persistent symptoms and severe asthma
Adults with asthma, including those with onset during adulthood, rarely become permanently asymptomatic
Asthma is a chronic inflammatory disorder of the airways
In susceptible individuals, inflammation causes recurrent episodes of wheezing, breathlessness, chest tightness, and coughing , particularly at night or in the early morning