Review Question - QID 212681

A 58-year-old man comes to the emergency department for cough and fever for the past week. The cough is described as wet and productive of a yellow/greenish colored sputum with no blood. His past medical history is significant for diabetes, end-stage renal disease secondary to reflux nephropathy, and mild asthma. The patient is currently on tacrolimus and mycophenolate mofetil for a right kidney transplant 3 months ago. He just returned from Indiana and denies any sick contacts. A physical examination demonstrates diffuse crackles at the bibasilar lung fields, tachycardia, and verrucous lesions of the skin shown in Figure A. A chest radiograph is obtained and demonstrates diffuse alveolar infiltrates. What is the most appropriate treatment for this patient?