Paramedics bring a 66-year-old woman to the ED. Her blood pressure is 104/58 mmHg, pulse rate 44 beats/minute, respiratory rate 14 breaths/minute, and temperature 92.4o F (33.6oC). No medical history is available, except for the patient’s statement of not feeling well for the past month. Physical examination reveals a lethargic, thin woman with dry skin and periorbital and facial edema. Bilateral pulmonary congestion is noted. EKG monitoring shows sinus bradycardia. The physician diagnoses impending myxedema coma. The patient remains hypothermic, with a temperature of 95o F (35oC). An appropriate nursing intervention would be to: