Question

Differential diagnosis of asthma and COPD

17 Feb 2026
Answer :
Word Count : 242
Asthma and Chronic Obstructive Pulmonary Disease (COPD) are both common respiratory conditions with overlapping symptoms, but they have distinct pathophysiological features and diagnostic criteria. The primary difference lies in the reversibility of airflow obstruction. Asthma is characterized by reversible airway obstruction, whereas COPD is typically associated with irreversible airflow limitation. The onset of asthma often occurs in childhood or early adulthood, while COPD generally develops after long-term exposure to risk factors, such as smoking, in older adults. In asthma, patients experience episodic
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