The Nurse Is Caring for a Group of Medical-Surgical Patients

The nurse is caring for a group of medical-surgical patients.Which patient is most at risk for developing an infection?

A) The patient who is in observation for chest pain.
B) The patient who is recovering from a right total hip arthroplasty.
C) The patient who has been admitted with dehydration.
D) The patient who has been admitted for stabilization of atrial fibrillation.