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Chapter 16. Thyroid & Parathyroid

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The best test to assess the thyroid function status of a patient who does not have known pituitary disease is

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A. Free T4

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B. T3

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C. T4

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D. TSH

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E. T4/T3 ratio

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D. TSH

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Indications for surgery to correct hyperthyroidism include

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A. Pregnancy

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B. Age over 50 years

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C. Large goiter with low radioiodine uptake

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D. Both A and C

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E. None of the above

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D. Both A and C

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Follicular thyroid cancer

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A. Is separated from papillary thyroid cancer because it develops from the follicular cells of the thyroid

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B. Is less likely to spread to lymph nodes than is papillary thyroid cancer

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C. Is commonly inoperable because of local invasion and encompassment of surrounding structures

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D. Commonly makes thyroid hormone producing hyperthyroidism

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E. Is best treated with radioiodine therapy, followed by thyroidectomy

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B. Is less likely to spread to lymph nodes than is papillary thyroid cancer

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The differential diagnosis of hypercalcemia includes

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A. Vitamin A toxicity

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B. Vigorous exercise

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C. Hypothyroidism

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D. Myasthenia gravis

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E. None of the above

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A. Vitamin A toxicity

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Patient characteristics that would meet current indications for surgery to correct asymptomatic hyperparathyroidism include

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A. Renal insufficiency with a glomerular filtration rate of 72 mL/min

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B. Age of 57 years

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C. Positive localization tests with concordant ultrasound and sestamibi scans

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D. Osteoporosis with a T-score of –2.8

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E. A serum calcium level of 10.8 mg/dL with an upper limit of normal of 10.3 mg/dL

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D. Osteoporosis with a T-score of -2.8

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