After the inhalation of a bronchodilator, what percentage change in peak expiratory flow (PEFR) would be required to demonstrate reversible airflow limitation consistent with asthma?
A) -20%
B) -10%
C) +10%
D) 20%

Question

After the inhalation of a bronchodilator, what percentage change in peak expiratory flow (PEFR) would be required to demonstrate reversible airflow limitation consistent with asthma?
A) -20%
B) -10%
C) +10%
D) >20%

Quizplus · Accepted Answer

After a bronchodilator, an improvement of 20% or greater in the PEFR would demonstrate positive airway response to the bronchodilator, consistent with asthma.

After the Inhalation of a Bronchodilator, What Percentage Change in Peak