Which medication serves as a rescue inhaler for pediatric asthma?

• A. Inhaled corticosteroids
• B. Long-acting beta-agonist
• C. Anticholinergic inhaler
• D. Short-acting beta-agonist (e.g., albuterol)

Answer: (D)

When a child with asthma needs immediate relief, the goal is rapid bronchodilation to quickly reverse bronchoconstriction. Short-acting beta-agonists, such as albuterol, fit this role because they rapidly stimulate beta-2 receptors on airway smooth muscle, causing quick relaxation of the airways and improved airflow within minutes. That fast onset is what makes them the rescue inhaler used for acute symptoms or before exercise for some kids.

Inhaled corticosteroids are controller medications; they reduce airway inflammation but do not provide fast relief during an attack, so they’re not used as rescue therapy. Long-acting beta-agonists stay bronchodilated for an extended period but don’t act quickly enough to treat acute symptoms and are typically used in combination with an inhaled corticosteroid for maintenance rather than rescue. Anticholinergic inhalers can be helpful in certain acute situations, but they are not the primary rescue agent for pediatric asthma. So the best answer for a rescue inhaler is a short-acting beta-agonist like albuterol.