A nurse in an urgent care center is caring for a client who is having an acute asthma exacerbation. Which of the following actions is the nurse's highest priority?

Rationale: A. Positioning the client in high-Fowler’s improves ventilation but is not the highest priority in reversing bronchospasm. B. Administering a nebulized beta-adrenergic (e.g., albuterol) is the highest priority because it rapidly relaxes bronchial smooth muscle, relieves airway obstruction, and improves airflow. C. Providing rest is supportive but does not address the immediate airway compromise. D. Oxygen therapy may be needed, but it does not relieve bronchospasm; bronchodilator administration takes priority in an acute asthma attack.