The nurse should triage these patients to place the most serious, time-sensitive patients first. The 45-year-old male with a sharp, tearing chest pain radiating to the back is concerning for an aortic dissection which can result in rupture and death if not management promptly and should be seen first by the nurse. The 22-year-old female with high fever and cough should probably be seen next to assess its seriousness. The recurrent atrial fibrillation and the fractured ankle are of lower priority since their conditions are stable.