A 55-year-old woman is admitted to the ED with a temperature of 105o F (40.5oC), blood pressure 180/110 mmHg, pulse rate 120 beats/minute, and respiratory rate 36 breaths/minute. She shows signs of dehydration and states that she has been experiencing muscle weakness and bone pain for the past week. She has a history of Grave’s disease. The physician diagnoses thyroid crisis. Which nursing measure would be inappropriate in controlling a patient’s pyrexia that is in thyroid crisis?