COPD - Diagnosis and treatment - Mayo Clinic

cop4dEnd stage chronic obstructive pulmonary disease (COPD), also referred to as stage 4 COPD, is the most severe stage of the condition. It can cause symptoms such asChest and lungs. How to live healthily with COPD. In the UK, 1.2 million people are affected by chronic obstructive pulmonary disease (COPD)