What does COPD stand for?

The term COPD stands for Chronic Obstructive Pulmonary Disease, which is a progressive lung disease characterized by increasing breathlessness. It encompasses conditions like chronic bronchitis and emphysema, both of which cause obstruction to airflow due to inflammation and damage to the lungs. Understanding this acronym is essential for recognizing its implications for patient care, treatment options, and the management of respiratory symptoms. The other options do not accurately define the condition, making the correct answer vital for proper medical education and communication.