This document contains multiple choice questions about chronic obstructive pulmonary disease (COPD) and its treatment. It asks questions about the types of emphysema most severe in upper lobes, risk factors for mortality, most significant COPD symptom, best test for exacerbation severity, and accurate treatment statements. It also provides clinical information about COPD pathogenesis, airflow limitation, symptoms by disease severity, rationale for dual bronchodilation, and studies on withdrawing inhaled corticosteroids.