What condition is commonly abbreviated as 'COPD'?

The term 'COPD' stands for Chronic Obstructive Pulmonary Disease, which is a progressive lung disease characterized by persistent respiratory symptoms and airflow limitation. This condition primarily includes emphysema and chronic bronchitis, both of which lead to difficulty in breathing and reduced airflow. COPD is often caused by long-term exposure to irritating gases or particulates, most commonly from cigarette smoke or environmental pollution.

Understanding the complete name helps in recognizing its symptoms and management strategies. For instance, 'chronic' indicates that the condition is long-lasting, while 'obstructive' refers to the airflow obstruction that occurs during breathing, which is a hallmark feature of the disease. This information is crucial for healthcare professionals in diagnosing and treating patients effectively.

In contrast to the other options provided, they do not accurately represent a recognized condition or health issue related to pulmonary function. Therefore, only 'Chronic Obstructive Pulmonary Disease' is the correct and relevant term in this context.