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Questions and Answers
Which hormone is the most abundant in the thyroid gland?
What is the primary function of thyroid hormones T3 and T4?
Which of the following elements is necessary for the synthesis of thyroid hormones?
What is the most common cause of hyperthyroidism?
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What is the role of thyroid-stimulating immunoglobulins (TSI) in Graves’ disease?
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Which of the following is a potential complication of untreated hyperthyroidism?
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What is the primary goal of pharmacotherapy for hypothyroidism?
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Which of the following statements regarding the management of hypothyroidism is true?
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What is a potential complication of untreated hypothyroidism?
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Study Notes
Thyroid Hormones
- Thyroxine (T4) is the most abundant hormone in the thyroid gland, and it’s converted into tri-iodothyronine (T3).
- T3 and T4 increase metabolic activity and protein synthesis, influencing processes like body temperature, growth, and development.
Thyroid Hormone Synthesis
- Iodine is essential for the synthesis of thyroid hormones.
Hyperthyroidism
- Graves’ disease is the most common cause of hyperthyroidism.
- Thyroid-stimulating immunoglobulins (TSI) in Graves’ disease mimic TSH, stimulating the thyroid gland to produce excessive hormones.
- Thyrotoxic crisis, a potentially life-threatening complication of hyperthyroidism, can occur if left untreated.
Hypothyroidism
- The primary goal of pharmacotherapy for hypothyroidism is to restore euthyroid state (normal thyroid function).
- Levothyroxine is the most common medication for hypothyroidism. TSH levels should be checked 4-6 weeks after any dose changes to assess efficacy.
- Myxedema coma, a serious complication of hypothyroidism, can occur if left untreated.
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Description
This quiz covers essential knowledge about thyroid hormones, including the roles of T3 and T4, the synthesis of these hormones, and conditions such as hyperthyroidism and hypothyroidism. Test your understanding of related treatments and medical implications.
