Patients with intermittent asthma have classic symptoms, or “attacks” of shortness of breath, cough, and wheezing no more than twice per week. Use of a rescue inhaler (containing short-acting beta-agonists, such as albuterol) no more than two days per week.
Intermittent asthma symptoms do not interfere with the patient’s regular activities of daily living.
Symptoms that awaken the patient from sleep occur no more than two times per month.
Pulmonary function tests demonstrate a normal peak expiratory flow (PEF), forced expiratory volume in one second (FEV1) of greater than 80% of predicted, and normal FEV1:FVC (forced vital capacity) ratio when the patient is asymptomatic.
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