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.