What is the role of thyroid function tests in the workup of myxedema coma (crisis)?

Updated: Oct 10, 2018
  • Author: Mohsen S Eledrisi, MD, FACP, FACE; Chief Editor: George T Griffing, MD  more...
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Answer

Thyroid function tests

  • TSH is elevated in most patients indicating a primary thyroid disorder
  • Free T4 and free T3 levels are low
  • A low or normal TSH level with low levels of free T4 and free T3 may indicate that the disorder is due to pituitary or hypothalamic dysfunction

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