What condition might result from prolonged irritation in the respiratory tract?

What condition might result from prolonged irritation in the respiratory tract?

• A. Asthma
• B. Pleurisy
• C. Smoker's cough
• D. Emphysema

Answer: (C)

Prolonged irritation in the respiratory tract is often associated with chronic exposure to irritants, such as smoke, pollutants, or allergens. Smoker's cough is a common result of this type of irritation, particularly in individuals who smoke or are frequently exposed to tobacco smoke. The irritation leads to inflammation and increased mucus production in the airways, causing a persistent cough as the body tries to clear the excess mucus and irritants from the respiratory tract.

In contrast, while asthma can be triggered by respiratory irritants, it is primarily a chronic inflammatory condition with a different underlying mechanism. Pleurisy involves inflammation of the pleura surrounding the lungs, which is not directly caused by irritation in the airways. Emphysema, a form of chronic obstructive pulmonary disease, stems from long-term damage to the lung tissue primarily due to the effects of smoking and will develop over a much longer time frame rather than being a direct result of acute irritation episodes. Therefore, smoker's cough is the most direct and fitting answer to the question about the consequences of prolonged irritation in the respiratory system.