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■ Administer thionamides - methimazole or propylthiouracil (PTU) - to prevent further synthesis and release of thyroid hormones.■ Administer propranolol to block sympathetic nervous system effects.■ Administer glucocorticoids to treat shock.■ Administer IV fluids to provide adequate hydration and prevent vascularcollapse. Fluid volume deficit may occur because of increased fluid excretion by the kidneys or excessive diaphoresis. Monitor intake and output hourly to prevent fluid overload or inadequate replacement.■ Administer sodium iodide as prescribed, 1 hr after administering PTU.