Ibuprofen 400 mg every 4 to 6 hours as needed for temperature greater than 100.5 °F (38 °C).

Enalapril 10 mg every morning.

Supplemental oxygen 10 L/min via nasal cannula.

Continuous pulse oximetry.

Send blood for a complete blood count, electrolytes, blood cultures, and procalcitonin.

Admit to the medical floor.

Vital signs every 4 hours.

Chest x-ray now.

Sputum culture and sensitivity.

Levofloxacin 500 mg intravenously every 24 hours.