Which chronic lung disease is defined as chronic obstructive pulmonary disease?

Which chronic lung disease is defined as chronic obstructive pulmonary disease?

• A. COPD
• B. Emphysema
• C. Chronic Bronchitis
• D. Pneumonia

Answer: (A)

COPD is a group of chronic lung diseases defined by persistent, not fully reversible airway obstruction. The two main conditions that fall under COPD are emphysema, which damages the alveolar walls and reduces surface area for gas exchange, and chronic bronchitis, which involves ongoing airway inflammation and excess mucus production. Pneumonia is an acute infection and is not part of COPD. Since the term COPD literally stands for chronic obstructive pulmonary disease, this option is the correct choice.

COPD is a group of chronic lung diseases defined by persistent, not fully reversible airway obstruction. The two main conditions that fall under COPD are emphysema, which damages the alveolar walls and reduces surface area for gas exchange, and chronic bronchitis, which involves ongoing airway inflammation and excess mucus production. Pneumonia is an acute infection and is not part of COPD. Since the term COPD literally stands for chronic obstructive pulmonary disease, this option is the correct choice.