Defining COPD

Question 1

how is COPD defined?

Answer 1

as a respiratory disorder (group of disorders) largely caused by smoking, characterized by progressive, partially reversible airway obstruction and lung hyperinflation systemic manifestations, and increasing frequency and severity of exacerbations

Question 2

what is COPD characterized by?

Answer 2

by persistent inflammation of airways, lung parenchyma and its vasculature

Question 3

what is the pathophysiological hallmark of COPD?

Answer 3

is expiratory flow limitation