Chronic Obstructive Pulmonary Disease

Chronic obstructive pulmonary disease(COPD) is characterized by persistent respiratory symptoms and progressive airflow obstruction. Tobacco smoking is the leading cause but not the only one. A postbronchodilator FEV1–FVC ratio less than 0.70 is required for a diagnosis of COPD. Inhaler therapy is the backbone of treatment and should be complemented by a multifaceted management strategy that includes counseling and pharmacotherapy for smoking cessation, pulmonary rehabilitation, treatment of comorbidities, administration of influenza and pneumococcal immunizations, and prescription of long-term oxygen therapy in hypoxemic patients. © 2020 American College of Physicians