The fоllоwing questiоn refers to the scenаrio for Adelаide Hunting Adelаide Hunting is a 79-year-old housewife. Ms. Hunting smokes two packs of cigarettes a day and says she has tried to quit smoking but has been unsuccessful in her attempts. She has a productive cough of green mucous, barrel chest, and bilateral pedal edema. Ms. Hunting declares she has had asthma all her life and that her mother and son have asthma too. She has had positive skin tests and says cats, dust, and perfumes are her triggers. Vital Signs: Temp: 37.8C Pulse: 112 RR: 28 B/P: 148/94 Ms. Hunting's breathing difficulty with wheezing and dyspnea may benefit from administration of which medication?