Step 1: Understanding acute asthma exacerbation.
During an acute asthma exacerbation, patients experience worsening symptoms due to airway constriction and inflammation. Immediate treatment focuses on bronchodilation and reducing airway obstruction.
Step 2: Analyzing the options.
(1) Oral corticosteroids: Oral corticosteroids are often used in more severe cases or for long-term control but are not the first-line treatment for acute exacerbation.
(2) Inhaled beta-agonists: Inhaled beta-agonists are the first-line treatment for acute asthma exacerbation as they quickly relax the muscles around the airways, improving airflow.
(3) Intravenous magnesium sulfate: Magnesium sulfate is used in severe cases of asthma exacerbation, especially when beta-agonists are not effective.
(4) Inhaled anticholinergics: These can be used as an adjunct to beta-agonists in acute exacerbations, but they are not first-line treatments.
Step 3: Conclusion.
The first-line treatment for acute asthma exacerbation is (2) Inhaled beta-agonists.