PATHOLOGY MCQ
ENDOCRINE SYSTEM
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Hypothyroidism is caused by ____ thyroxine secretion, whereas hyperthyroidism is caused by ____ thyroxine secretion.
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adequate, excessive
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inadequate, excessive
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adequate, insufficient
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inadequate, insufficient
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Explanation:
Detailed explanation-1: -Hypothyroidism: In primary hypothyroidism, decreased production of thyroid hormones by the thyroid gland causes a compensatory increase of TSH. Secondary hypothyroidism is caused by pituitary disorders causing decreased TSH release and decreased T3/T4 levels.
Detailed explanation-2: -Graves’ disease, the most common cause of hyperthyroidism, is an autoimmune disorder. With this disease, your immune system attacks the thyroid and causes it to make too much thyroid hormone.
There is 1 question to complete.