A 69-year-old man with a history of chronic obstructive pulmonary disease/chronic bronchitis is admitted with increasing sputum production, fever, chills, and decreased O2 saturation. His chest x-ray shows a left lower lobe nonhomogeneous opacity. He is treated with IV antibiotics and improves. On the fouh hospital day, prior to discharge, CXR is repeated and the radiologist repos that there is no change as compared to the admission x-ray. Chest x-rays are shown.What will you do next?