The nurse is caring for an older adult in the emergency department with moderate hypothermia. Which of the following actions should the nurse take? Select all that apply.

E Administer ordered medications at spaced longer intervals. B Actively rewarm the extremities first, followed by the client's trunk. C Use extracorporeal rewarming methods such as cardiopulmonary bypass or hemodialysis. F Administer room temperature intravenous (IV) fluids for core rewarming. A Apply external heat with a heating blanket to the client's trunk. D Monitor for fluid, electrolyte, and metabolic abnormalities.