Fast Five Quiz: Challenges of Severe Asthma

Zab Mosenifar, MD


February 25, 2021

Figure 1. Illustration of the development of bronchiole constriction associated with asthma.

According to the NAEPP guidelines, severe persistent asthma is characterized by lung function test FEV1 ≤ 60%; symptoms of cough, wheezing, chest tightness, or difficulty breathing that are continual; frequent nighttime symptoms; and peak flow with more than 30% variability.

Learn more about asthma classification guidelines.


Comments on Medscape are moderated and should be professional in tone and on topic. You must declare any conflicts of interest related to your comments and responses. Please see our Commenting Guide for further information. We reserve the right to remove posts at our sole discretion.