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What is Asthma? Symptoms Triggers Severity Levels Treatment Case Studies
Based on the recommendations of a National Asthma Education and Prevention Program (NAEPP) expert panel, the National
Heart Lung and Blood Institute published a set of evidence-based guidelines to assist health professionals in the diagnosis
and treatment of asthma. They characterize the clinical features of asthma severity as follows:

Classification
Symptoms
FEV (Peak Flow Value)
Mild intermittent Wheeze or cough 2 or fewer times per week
Symptoms at night 2 or fewer times per month
Greater than 80%
Mild persistent Wheeze or cough 3-6 times per week
Symptoms at night 3-4 times per month
Increased symptoms with activity
Greater than 80%
Moderate persistent Daily symptoms
Daily inhaled beta2-agonist (bronchodilator) medication use
Symptoms at night 5 or more times per month
Decreased exercise capacity
Greater than 60% -
less than 80%
Severe persistent Continual symptoms limiting activity
Frequent exacerbations
Frequent symptoms at night
Less than or
equal to 60%

Asthma does not necessarily remain in the same category permanently. People may move up and down based on many factors
such as presence of allergens, incorrect use of medications and treatments or lack of adherence to the recommended treatment regimen. Effective treatment should lead to better asthma control and allow the person to move to a less severe category.

Select the Treatment tab to continue.

Creative Commons LicenseThis learning activity was developed by Christine Pintz, FNP, MSN, coordinator of the Family Nurse Practitioner program at the George Washington University, in collaboration with Partnerships for Training, an Association of Academic Health Centers program funded by the Robert Wood Johnson Foundation.