Which of the following is a common cause of COPD exacerbations?

Infections are a common cause of COPD exacerbations because they can lead to increased inflammation in the airways and decreased lung function. Respiratory infections, particularly viral and bacterial infections, can provoke symptoms such as increased cough, sputum production, and shortness of breath in individuals with COPD. During an exacerbation, the airways may produce more mucus and become more obstructed, which can significantly impair breathing.

Understanding the role of infections in exacerbating COPD is crucial for managing the condition effectively, as prompt treatment of infections can help prevent further decline in respiratory function and improve overall patient outcomes.