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Questions and Answers
What percentage of iodine in the body is in the form of T4?
What percentage of iodine in the body is in the form of T4?
- 70%
- 90%
- 95% (correct)
- 80%
What is the main transport protein of thyroid hormones in the blood?
What is the main transport protein of thyroid hormones in the blood?
- Thyroid-stimulating hormone (TSH)
- Triiodothyronine (T3)
- Thyroid-binding globulin (TBG) (correct)
- Thyroxine (T4)
What is the half-life of T4 in individuals with hypothyroidism?
What is the half-life of T4 in individuals with hypothyroidism?
- 3-4 days
- 9-10 days (correct)
- 11-12 days
- 6-8 days
What is the recommended daily intake of iodine for pregnant women?
What is the recommended daily intake of iodine for pregnant women?
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What is the effect of cold stress on T3 and T4 synthesis?
What is the effect of cold stress on T3 and T4 synthesis?
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What is the mechanism of action of thyroid hormones at the cellular level?
What is the mechanism of action of thyroid hormones at the cellular level?
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What is the role of TRH in the regulation of thyroid hormone synthesis?
What is the role of TRH in the regulation of thyroid hormone synthesis?
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What is the effect of TSH on thyroid hormone synthesis?
What is the effect of TSH on thyroid hormone synthesis?
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What is the percentage of unbound T3 in plasma?
What is the percentage of unbound T3 in plasma?
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What is the fate of T3 and T4 in the liver?
What is the fate of T3 and T4 in the liver?
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