Level 1 initial symptom severity level Patients with asthma symptoms less than once a week, rarely have symptoms at night or in a particular month will suffocate during the night, just not more than 2 times per month. When reviewing the performance of the lung that is normal. Level 2 Less severe level, by having asthma symptoms more than once a week but not the size frequency every day. During the night, it will suffocate more than 2 times per month.Level 3. Moderate-severe wheezing level every day. The wheezing at night exceeded the average once a week and will affect daily life. Level 4. A very serious level. Patients with symptoms of wheezing all the time, and is very frequently during the night. Symptoms are interfering with daily life very seriously.
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