A 72 year old man presents with a 4 day history of a productive cough and shortness of breath. He is allergic to Penicillin.
On examination, he has right basal crepitations consistent with a Pneumonia. His observations demonstrate that his blood pressure is 138/77 mmHg, his respiratory rate is 18 breaths per minute, his pulse is 88 beats per minute and his temperature is 37.6°C. He is alert and oriented.
What is the next most appropriate step in management?