In purely chronic bronchitis, one form of COPD, all of the following are pathophysiological changes except:

Name: In purely chronic bronchitis, one form of COPD, all of the following are pathophysiological changes except:
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In chronic bronchitis, the primary changes include increased sputum production and airway obstruction due to inflammation and mucus buildup. Loss of alveolar-capillary bed surface area is more characteristic of emphysema, another form of COPD, not chronic bronchitis.

In Purely Chronic Bronchitis, One Form of COPD, All of the Following