aboratory and cytopathologic findings noted above,is(难、应用) A. Refer the patient to a surgeon specializing in thyroid surgery for thyroidectomy B. Initiate levothyroxine therapy to suppress the nodule C. Recommend follow-up with ultrasound in 6 months to see if the nodule is increasing in size D. Do a thyroid scan to determine if the nodule ishot'versuscold' orwarm E. Advise the patient to have rebiopsy in 2 months 2247. Which of the following thyroid cancers are responsive to3 I therapy?(易、应用) A. Follicular cancer of the thyroid B. Medullary cancer of the thyroid C. Anaplastic thyroid D. Primary lymphoma of the thyroid E. Both a and c *2248. A 30-year-old man is evaluated for a thyroid nodule. The patient reports that his father died from thyroid cancer'and that a brother had a history of recurrent renal stones. Blood calcitonin concentration is 2000pg/mL(normal: less than 100); serum calcium and phosphate levels are normal Before referring the patient to a surgeon, the physician should(难、应用) A. obtain a liver scan B. perform a calcium infusion test C. measure urinary catecholamines D. administer suppressive doses of thyroxine and measure levels of thyroid stimulating hormone E. treat the patient with radioactive iodine 2249. An otherwise healthy 60-year-old man is noted on routine examination to have a firm thyroid nodule. Serum thyroxine is 8.0 W g/dL(normal: 4 to 11). Thyroid scan demonstrates cold'nodule. The appropriate management would be which of the following procedures? (53 应用 A. Complete lobectomy B. Fine needle aspiration cytology C. Levothyroxine D. Radioactive iodin therapy E. External irradiation 2250. A 60-year-old woman presents with generalized muscle weakness, loss If appetit palpitations, and a small diffuse nodular goiter. An electrocardiogram reveals rapid atrial fibrillation Despite adequate digitalization there is little slowing of her ventricular rate. Thyroid function studies reveal a serum thyroxine level of 12 u g/dl(normal: 5 to 12),with a triiodothyronine(T3)level of 200ng/dL(normal: 80 to 160), as measured by radioimmunoassay and a highly sensitive thyroid-stimulating hormone(TSH)of 0.05 H lU/mL(normal: 0.3 to 3.0) The most likely diagnosis and appropriate treatment would be(易、应用) A. typical Graves'disease; therapy with antithyroid drugs B. mild Graves'disease initiation of therapy with low dose of 3I C. tocic multinodular goiter; therapy with antithyroid drugs followed by surgery D. toxic multinodular goiter; therapy with antithyroid drugs followed by high dose of 3I when euthyroid E. sick euthyroid syndrome; continuation of treatment of heart disease with digoxin and propranolol 2251.ACIH依赖性皮质醇增多症最常见的病因是(易,记忆) A垂体ACTH细胞增生laboratory and cytopathologic findings noted above, is （难、应用） A. Refer the patient to a surgeon specializing in thyroid surgery for thyroidectomy B. Initiate levothyroxine therapy to suppress the nodule C. Recommend follow-up with ultrasound in 6 months to see if the nodule is increasing in size D. Do a thyroid scan to determine if the nodule is ‘hot’ versus ‘cold’ or ‘warm’ E. Advise the patient to have rebiopsy in 2 months. 2247. Which of the following thyroid cancers are responsive to 131I therapy?（易、应用） A. Follicular cancer of the thyroid B. Medullary cancer of the thyroid C. Anaplastic thyroid cancer D. Primary lymphoma of the thyroid E. Both A and C *2248. A 30-year-old man is evaluated for a thyroid nodule. The patient reports that his father died from ‘thyroid cancer’ and that a brother had a historhy of recurrent renal stones. Blood calcitonin concentration is 2000pg/mL(normal: less than 100) ; serum calcium and phosphate levels are normal. Before referring the patient to a surgeon, the physician should （难、应用） A. obtain a liver scan B. perform a calcium infusion test C. measure urinary catecholamines D. administer suppressive doses of thyroxine and measure levels of thyroid stimulating hormone E. treat the patient with radioactive iodine 2249. An otherwise healthy 60-year-old man is noted on routine examination to have a firm thyroid nodule. Serum thyroxine is 8.0 μg/dL(normal: 4 to 11). Thyroid scan demonstrates a ‘cold ‘nodule. The appropriate management would be which of the following procedures? （易、 应用） A. Complete lobectomy B. Fine needle aspiration cytology C. Levothyroxine D. Radioactive iodinw therapy E. External irradiation 2250. A 60-year-old woman presents with generalized muscle weakness, loss lf appetite, palpitations, and a small diffuse nodular goiter. An electrocardiogram reveals rapid atrial fibrillation. Despite adequate digitalization there is little slowing of her ventricular rate. Thyroid function studies reveal a serum thyroxine level of 12 μg/dL(normal: 5 to 12), with a triiodothyronine(T3) level of 200ng/dL(normal: 80 to 160), as measured by radioimmunoassay and a highly sensitive thyroid-stimulating hormone(TSH) of 0.05μIU/mL(normal: 0.3 to 3.0) The most likely diagnosis and appropriate treatment would be（易、应用） A. typical Graves’ disease; therapy with antithyroid drugs B. mild Graves’ disease; initiation of therapy with low dose of 131I C. tocic multinodular goiter; therapy with antithyroid drugs followed by surgery D. toxic multinodular goiter;therapy with antithyroid drugs followed by high dose of 131I when euthyroid E. sick euthyroid syndrome; continuation of treatment of heart disease with digoxin and propranolol 2251. ACTH 依赖性皮质醇增多症最常见的病因是（易，记忆） A 垂体 ACTH 细胞增生