Thyroid disorders

Thyroid disorders - Thyroid disorders Hyperthyroidsim Most common endocrine disorder of cats Functional adenoma etiology of development currently

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Thyroid disorders Hyperthyroidsim Most common endocrine disorder of cats Functional adenoma, etiology of development currently unknown Himalayan and Siamese less commonly affected Positive statistical correlation between canned food (esp. liver and giblet flavors) and use of cat litter
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Hyperthyroidism Clinical signs PU/PD Weight loss Polyphagia Hyperactivity/behavioral changes V/D
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PE— Thin cat Poor hair coat, thickened nails Palpable enlarged thyroid Tachycardia, gallop rhythm, murmurs
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Hyperthyroidism Diagnosis— Mild erythtocytosis +/- stress leukogram BUN with normal creatinine ALT, AST T3, T4
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Hyperthyroidism Treatment Surgical—excision Preoperative nuclear scan for ectopic thyroid tissue Postoperative hypocalcemia common, requires careful monitoring Radioactive iodine therapy I-131 Non-invasive, permanent, effective on ectopic tissue Cat must remain hospitalized until levels drop
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Hyperthyroidism Medical treatment— Methimazole (Tapazole) most common Anorexia, vomiting common side effects Facial pruritis Blood dyscrasias Propthiouracil Sodium ipodate—blocks conversion of T4 T3 Need to monitor T3 levels vs. T4
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This note was uploaded on 11/30/2009 for the course VS 441 taught by Professor Newell during the Fall '03 term at Becker College.

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Thyroid disorders - Thyroid disorders Hyperthyroidsim Most common endocrine disorder of cats Functional adenoma etiology of development currently

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