It is not clear whether your patient has COPD or asthma. Which of the following characteristics is most closely associated with the diagnosis of asthma?

Question

Quizplus · Accepted Answer

Normalization of the FEV1/FVC after use of a bronchodilator is a hallmark of asthma, as it indicates reversibility of airway obstruction. Daily phlegm production is more commonly associated with COPD. Diminished vascularity on chest radiograph is not specific to either asthma or COPD. Low diffusion capacity can occur in both asthma and COPD, but is more commonly associated with advanced COPD.

It Is Not Clear Whether Your Patient Has COPD or Asthma