A 10-year-old presents in the clinic with a temperature of 1…

A 10-year-old presents in the clinic with a temperature of 101.8ºF and a cough for the last 5 days. Two of the child’s schoolmates had similar symptoms when they spent the night together last week. On physical examination the nurse practitioner hears crackles in the bases of both lungs. The patient has no medication, environmental or food allergies. What should the nurse practitioner order for this patient?