甲状腺功能检查现较常用的是吸碘率测定。这个方法虽有优点,但有许多不足之处。近几年来,国内外均在用竞争旦白结合分析法或放射免疫法测定血清总甲状腺素(T_4)含量,能弥补上述方法不足之处。如吸碘率测定受含碘食物、溴化物、抗甲状腺药物、碘油造影剂,激素等影响。若患者服用了上述药物,常需等待一个月左右,使患者多次往返,尤其是远道患者更不方便。又如测得吸碘率增高不一定就是甲亢,而缺碘性甲状腺肿、发高 Thyroid function tests are more commonly used iodine absorption rate determination. Although this method has advantages, but there are many shortcomings. In recent years, at home and abroad are using competitive white combination analysis or radioimmunoassay determination of serum total thyroxine (T_4) content, can make up for the deficiencies of the above methods. Such as iodine absorption rate measured by iodine-containing foods, bromide, anti-thyroid drugs, lipiodol contrast agents, hormones and other effects. If patients take the above drugs, often need to wait a month or so, so that patients repeatedly, especially for patients more remote inconvenience. Another example is measured iodine uptake is not necessarily hyperthyroidism, and iodine deficiency goiter, high