🏥 USMLE Exam Prep

An 8-year-old child with a history of asthma presents to the emergency department with acute onset wheezing, tachypnea, and accessory muscle use, despite using their home albuterol inhaler several times. Their peak expiratory flow (PEF) is 60% of their personal best. What is the most appropriate initial pharmacologic intervention in the emergency department?

A Oral prednisone
B Continuous inhaled albuterol
C Intravenous magnesium sulfate
D Inhaled ipratropium bromide

✓ Correct Answer: Option B

For moderate to severe asthma exacerbations unresponsive to initial home therapy, continuous inhaled albuterol is the most appropriate initial treatment to achieve rapid bronchodilation. Systemic corticosteroids should also be given but bronchodilators are immediate.

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