Hyperthyroidism - Learning Issue: Hyperthyroidism Name:...

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Learning Issue: Hyperthyroidism Name: Michael Holmes efinition Is the clinical expression of a heterogeneous group of disorders that produce elevations of free thyroxin (T 4 ), triiodothyronine (T 3 ), or both. Well recognized causes of hyperthyroidism include diffuse toxic goiter (graves’ disease, most common), toxic multinodular goiter (2 nd , most common), toxic adenoma (toxic nodule, 3 rd most common), thyroiditis (4 th most commone), and exogenous thyroid hormons (5 th most common) , excessive ingestion of thyroid hormone, and iodine excess (Jod-Basedow phenomenon). Factors Women are more likely in women, persons older than 60 years athophysi The mechanism responsible for this excess include stimulation of thyroid- stimulating hormone (TSH) receptors by immunoglobulins, autonomous thyroid hormone production, increased release of thyroid hormone without increased production, increased production of TSH, and intake of exogenous hormone. Thyroid hormone stimulates calorigenesis and catabolism and enhances
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This note was uploaded on 02/18/2012 for the course PAS 600 - 601 taught by Professor Garrubba during the Fall '10 term at Chatham University.

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Hyperthyroidism - Learning Issue: Hyperthyroidism Name:...

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