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28 Cards in this Set
- Front
- Back
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Levothyroxine sodium is drug taken for hypothyroidism to increase what hormone?
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T4
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Liothyronine sodium is drug taken for hypothyroidism to increase what hormone?
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T3
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Liotrix is drug taken for hypothyroidism to increase what hormone?
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T3 and T4
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How should drugs to treat hypothyroidism be taken?
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1 hour before meal, 2 hours after meals; in AM
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What should be avoided when taking meds for hypothyroidism?
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Iodized salts and goitrogens
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Increased level of TSH indicates dysfunction of which gland?
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Thyroid
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Decreased level of TSH indicates dysfunction of which gland?
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Pituitary and hypothalamus
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If TSH increases after injection of TRH, this indicates dysfunction of which gland?
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Hypothalamus
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Low TSH and high T3/T4 indicates what type of thyroid disorder?
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Hyperthyroidism
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What diagnostic test is performed to differentiate between Grave's disease and other forms of thyroiditis?
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Radioactive iodine uptake (Grave's will show 35-95% diffuse, homogeneous uptake)
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Name 2 antithyroid drugs used to treat hyperthyroidism.
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PTU (propylthiouracil) and Tapazole (methimazole)
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How long does it take to see improvements in hyperthyroidism after beginning antithyroid drug treatment?
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1-2 weeks, continued 6 months to 2 years, NOT curative.
Shrinks thyroid before surgery. |
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What decreases vascularity of thyroid gland, max. effect seen within 1-2 weeks, and not effective as long-term therapy?
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Iodine
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What drugs are used to relieve symptoms of thyrotoxicosis resulting from B-adrenergic receptor stimulation?
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Propanolol (Inderal) and Tenormin (used for patients with heart disease or asthma)
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When will a patient start to respond to radioactive iodine therapy?
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2-3 months
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Post-op from subtotal thyroidectomy, what position should the patient be placed in?
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Semi-fowler with trachea tray at bedside
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Calcium salts should be available at patient bedside after thyroid surgery for what disease?
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Hyperthyroidism
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What reduces the function of the thyroid?
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Goitrogens
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What does Chvostek's sign indicate?
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Hypocalcemia (twitching at one side of lip and face)
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What does Trousseau's sign indicate?
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Hypocalcemia
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True or False: Excess iodine inhibits the thyroid?
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True
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In low dose dexamethasone suppression diagnostic test for Cushing's syndrome, what is the expected result for a normal person?
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Cortisol level should decrease in response to dexamethasone
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What could cause false positive results for the low dose dexamethasone suppression test?
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Depression, stress, or alcoholism
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What does a high or normal ACTH level indicate?
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ACTH dependent Cushing disease
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What does low or undetectable ACTH levels indicate?
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Adrenal or exogenous etiology
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What drug suppresses cortisol production?
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Mitotane (Lysodren)
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What 3 drugs inhibit cortisol synthesis?
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metyrapone, ketoconazole, aminoglutethimide
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When should drugs to treat high cortisol levels be given?
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In the morning when cortisol levels are highest
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