A 60-year-old man is admitted to the hospital from work with fever, cough, tachypnea, and increased sputum production. H

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A 60-year-old man is admitted to the hospital from work with
fever, cough, tachypnea, and increased sputum production. His past
medical history is significant for smoking two packs per day and
prn 2-week amoxicillin antibiotic courses for sputum color changes.
His blood pressure is 140/85 mmHg and RR 30 breaths/minute. He has
an elevated WBC count and crackles in the lower base of the right
lung. A Gram stain shows predominant gram-negative rods.
What findings are consistent with pneumonia in this man? What
more information would you need to confirm this? What empiric
treatment might you consider? How would you decide if inpatient
treatment is necessary?