COPD: Stages, Causes, Treatment, and More

cop4dIn addition to staging your lung function, your doctor may also classify your COPD by group. Your group is determined by the severity of your COPD symptoms, the number of COPDChronic obstructive pulmonary disease (COPD) is the name for a collection of lung diseases including chronic bronchitis, emphysema, and chronic obstructive airways disease.