单选题 Which laboratory test results would the nurse expect to find in a client diagnosed with Hashimoto's thyroiditis?
  • A. Thyroxine (T4), 22μg/dL; triiodothyronine (T3), 320ng/dL; thyroid-stimulating hormone (TSH) undetectable.
  • B. T4, 22μg/dL; T3, 200ng/dL; TSH,0.1μIU/mL.
  • C. T4, 2μg/dL; T3, 200ng/dL; TSH,5.9μIU/mL.
  • D. T4, 2μg/dL; T3, 35ng/dL; TSH,45μIU/mL.
【正确答案】 D
【答案解析】Normal thyroid function tests are as follows: T4, 5 to 12 μg/dL; T3, 65 to 195 μg/dL; TSH 0.3 to 5.4μIU/mL. With Hashimoto's thyroiditis, T4 and T3 levels are typically subnormal and TSH is elevated. With primary hyperthyroidism, T4 and T3 levels are elevated and TSH is subnormal (options A and B). With hypothyroidism, T4 is subnormal and T3 and TSH levels are elevated (option C).