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Martin is a 73 y/o male who has a 50 pack/year history of smoking and comes to the clinic for his annual physical. As you are leading him back to the exam room you note that he has dyspnea with minimal cough, a barrel chest, and appears to have lost weight since his last visit. Your physical exam confirms a 20 lb. weight loss and more noticeable pursed lip breathing. Given Martin's condition, the first-line treatment would be all the following except:
a) Albuterol
b) Salmeterol
c) Levalbuterol
d) Metaproterenol