What does stage 4 empyzema copd mean?

Stage 4 emphysema, part of the COPD (Chronic Obstructive Pulmonary Disease) classification, represents the most severe form of the disease, also known as end-stage COPD. At this stage, individuals experience significant limitations in airflow, leading to severe breathing difficulties and reduced quality of life. Symptoms often include persistent cough, increased sputum production, and frequent exacerbations, requiring supplemental oxygen and possibly more intensive medical interventions. Management focuses on alleviating symptoms and improving overall well-being, as the disease is generally irreversible.