Which of the following hormone levels are expected if the pituitary gland is unable to secrete TSH? low TRH, low TSH, low TH high TRH, low TSH, low TH low TRH, low TSH, high TH high TRH, low TSH, high TH
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Based on what you know about negative feedback mechanisms in the endocrine system, which of the following lab results would indicate hypothyroidism due to primary thyroid disease (assuming that it was possible to get results for all three hormones)? low TSH high TSH low T4 high T4 low TRH (thyrotropin releasing hormone) high TRH (thyrotropin releasing hormone)
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Fill out the chart below. Record whether the hormone levels are expected to be high, low, or either. For antibody/immunoglobulins and goiter, answer yes, no, or possible. (The antibodies and immunoglobulins in question are those specific to the thyroid disorder.) (2 points) Primary hypothyroidism (iodine deficiency) | Graves' disease | Hashimoto's Thyroiditis | TRH-secreting tumor | TSH-secreting tumor | TRH-suppressing tumor | TSH-suppressing tumor TRH levels TSH levels T3 and T4 levels Antibodies or immunoglobulins? Goiter? Is patient hyper- or hypothyroid? Use the chart below to record whether the hormone levels are expected to be high, low, or either. For antibody/immunoglobulin and goiter, answer yes, no, or possible. (2 points) Hypothyroidism | Hyperthyroidism TSH level T3 and T4 levels Antibodies or immunoglobulins? Goiter?
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Trauma to the anterior pituitary caused secondary hyposecretion of thyroid-stimulating hormone (TSH). What would you expect to happen to the levels of thyroid-releasing hormone (TRH) and thyroid hormones (TH)? Decreased TRH and decreased TH Increased TRH and increased TH Increased TRH and decreased TH Decreased TRH and increased TH
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