Abstract
Myxedema coma is a life-threatening manifestation of hypothyroidism associated with altered mental status, hypothermia, and symptoms related to the slowing of other organ systems. It can occur as a culmination of severe, longstanding hypothyroidism or be precipitated by acute stressors such as infection, myocardial infarction, cold exposure, and surgery in patients with poorly controlled hypothyroidism. Given the high mortality rate and acuity with which the disease presents, treatment with thyroid hormone replacement should be initiated upon suspicion of the disease even prior to obtaining laboratory confirmation. Stress doses of hydrocortisone should also be given until coexisting adrenal insufficiency is excluded. We present a case of a 58-year-old male who presented to the emergency department after being found on the floor of his house. Physical examinations and laboratory results were significant for myxedema coma and the patient was given levothyroxine with improvement of symptoms and mild change in thyroid hormone levels during hospitalization.