The most common cause of chronic obstructive pulmonary disease (COPD) is:

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Quizplus · Accepted Answer

COPD is primarily caused by lung destruction resulting from smoking tobacco products. Bronchodilators are medications used to reverse airway obstruction. Alpha₁-antitrypsin deficiency is a relatively rare genetic cause of COPD. Air pollution and asbestos are both damaging to the lungs-but they produce much less lung damage than the direct impact of smoke on the lungs.

The Most Common Cause of Chronic Obstructive Pulmonary Disease (COPD)