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What is the main cause of asthma exacerbations?
Correct Incorrect Asthma exacerbations are often precipitated by external factors such as viral respiratory infections and exposure to allergens (e.g., pollen, dust mites, pet dander). These triggers increase airway inflammation, leading to bronchial hyperresponsiveness, mucus hypersecretion, and smooth muscle constriction. This inflammatory cascade narrows the airways, causing symptoms like wheezing, coughing, and breathlessness. Understanding and identifying individual triggers are crucial for effective asthma management, which includes environmental control, avoidance strategies, and timely pharmacologic intervention to reduce inflammation and prevent attacks.