Which of the following statements regarding thyroid physiology are true?
- Normally about 20% of T3 is secreted directly from the thyroid gland
- The thyroid gland is the only endogenous source of T4
- Excess thyroid hormone results in an increase in the number of ATP-dependent sodium pumps on the cell membrane
- The majority of thyroid hormone in circulating plasma is bound to albumin, thus limiting the availability of the metabolically active form
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Category:
Endocrinology MCQs
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