What is the maximum predicted FEV1 for a patient with intermittent asthma?

The maximum predicted FEV1 (Forced Expiratory Volume in 1 second) for a patient with intermittent asthma is considered to be 80% or more of the predicted values. Intermittent asthma is characterized by occasional symptoms and normal lung function between episodes. Patients typically experience brief periods of airflow limitation, but their lung function tests, including FEV1, generally remain within the normal range when they are asymptomatic.

In this context, a normal or nearly normal FEV1 indicates that the patient's lungs are functioning effectively outside of acute episodes of asthma symptoms. The classification of asthma severity helps guide treatment, and it's important to recognize that patients with intermittent asthma do not have significant chronic airflow limitation, thereby allowing for a predicted FEV1 of 80% or greater. This level of lung function reflects the reversible nature of intermittent asthma when appropriately managed.