A 60-year-old woman comes to the emergency room in a coma. The patient's temperature is 32.2degC (90degF). She is bradycardic. Her thyroid gland is enlarged. There is diffuse hyporeflexia. BP is 100/60. Which of the following is the best next step in management?
Await results of T4 and TSH. Obtain T4 and TSH; begin intravenous thyroid hormone and glucocorticoid. Begin rapid rewarming. Obtain CT scan of the head.