AI generated podcast from Tonya Piehl's lecture notes.

This document outlines the Global Initiative for Chronic Obstructive Lung Disease (GOLD) guidelines for classifying and treating COPD. **COPD is defined**, diagnosed via spirometry, and classified into four stages (GOLD 1-4) based on airflow limitation (FEV1). **Severity is further assessed** using the mMRC dyspnea scale and CAT score to determine symptom burden. **Exacerbation risk** is also considered, influencing treatment choices. Finally, the guidelines provide recommendations for pharmacological treatment, varying depending on the stage of COPD and the patient's individual symptoms and exacerbation history.