Which abbreviation stands for a chronic obstructive lung disease?

• A. URI
• B. ENT
• C. COPD
• D. SOB

Answer: (C)

Chronic obstructive lung disease is abbreviated COPD. This term names a long-term, progressive limitation of airflow in the lungs, usually caused by exposure to irritants such as cigarette smoke. The condition encompasses diseases like chronic bronchitis and emphysema and is characterized by persistent symptoms such as chronic cough, mucus production, and shortness of breath, with airflow limitation that isn’t fully reversible on testing.

Upper respiratory infection refers to a short-term illness of the nose, throat, or airways, not a chronic lung disease. Shortness of breath is a symptom, not a disease name. ENT is an abbreviation for ear, nose, and throat (or otolaryngology), not a disease.