What is the approach for treating patients with hypothyroidism who are on long-term continuous tube feeding?

Updated: Mar 03, 2021
  • Author: Philip R Orlander, MD, FACP; Chief Editor: George T Griffing, MD  more...
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Most patients with hypothyroidism can be treated in an ambulatory care setting. Patients who require long-term continuous tube feeding routinely require intravenous (IV) LT4 replacement because the absorption of oral agents is impaired by the contents of tube feeds. Alternatively, tube feeds can be withheld for 1 hour while the patient receives an oral preparation of LT4. It should be noted that oral and IV preparations of LT4 are not equivalent; consequently, great care must be taken in switching between these formulations.

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