高灵敏促甲状腺素 (h- TSH)是反映甲状腺功能最灵敏的检测指标之一。但据临床观察 ,甲状腺功能亢进 (甲亢 )患者在 1 31 I治疗后出现早发甲低时 ,其部分患者在 FT4 和 (或 )FT3低于正常值时 ,h- TSH亦出现低于正常值的“三低”现象。本文对 2 0 0 1年 1月至 2 0 0 3年 6月在我 Sensitive thyroid stimulating hormone (h-TSH) is one of the most sensitive detection indicators of thyroid function. However, according to clinical observation, in patients with hyperthyroidism (Hyperthyroidism) who developed early hypothyroidism after 131 I treatment, some patients also had lower than normal values ​​of h-TSH when FT4 and / or FT3 were lower than normal The “three low” phenomenon. This article from January 2001 to June 2003 was at me