A 5-year-old boy was playing outside during recess when he began to experience difficulty breathing. He was brought to his physician, because his symptoms seemed to be getting worse. On examination, the physician notes that the boy is struggling to breathe and hears diffuse wheezing bilaterally. The boy’s heart rate is 98/min, respiratory rate is 24/min, and oxygen saturation is 90%. His medical history is significant only for seasonal allergies and mild eczema. Which type of medication will alleviate this patient’s respiratory symptoms?
- (A) b1 Antagonist
- (B) b1 Agonist
- (C) b2 Agonist
- (D) Histamine1 agonist
- (E) Histamine2 agonist