ual shows no increase in metabolic rate when 37. A hypothyroid individual no thy
ID: 3512138 • Letter: U
Question
ual shows no increase in metabolic rate when 37. A hypothyroid individual no thyroid-stimulating hormone (TSH). Thin metabolic a) Primary hypothyroidism b) Secondary hypothyroidism one (TSH). This suggests 38. Propylthiouracil prevents thyroid hormone synthesis injected into a thyroidectomized subject? What fiec i il lhe a) Increased thyroid hormone b) Decreased thyroid hormone c) No change in thyroid hormone 39. If pituitary fails to produce TSH, level of TRH production fron hypothalamus will a) Increase b) Decrease c) No change 40. In laboratory exercise, increased oxygen consumption indicates a) Increased metabolism b) Decreased metabolism 41. In primary hypothyroidism, youexpect to see-_. a) Increased TRH, decreased TSH b) Decreased TRH, increased TSH c) Decreased TRH, decreased TSHExplanation / Answer
37) a is right option that is primary hypothyrodism because in primary hypothyrodism thyroid gland itself a problem and do not secreat enough thyroid hormone after even injecting a TSH.
38) c is the right option because there is no thyroid gland to be affected by propylthiouracil.
39) b decrease is correct one , because TRH from pitutary is under feedback control which is regulated by the level of TSH by pitutary gland.
40) Increased metabolism which is shown by increased oxygen consumption and 5-10% increase of RBCs.
41) b , decreased TRH and increased TSH.
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