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晚近,由于放射免疫技术在激素测定上的临床应用,使甲状腺机能减退(甲减)的临床诊断、分类及分型日趋科学化。本文就血清T_3、T_4,促甲状腺素(TSH),促甲状腺激素释放激素(TRH)兴奋试验对甲减的诊断及鉴别诊断的临床价值及甲减少见并发症的临床特征加以阐述,以便早期而准确地提高甲减的诊断率。 一、甲减的病因及解剖学定位诊断 (一)甲状腺性甲减 又称原发性甲减,病变在甲状腺,在甲减中占绝大部分。本病除医源性、甲状腺先天性缺如、地方性甲状腺肿所致者易诊断外,其它诊断则较困难;部分原因不明者可能与甲
Recently, due to the clinical application of radioimmunoassay in hormone determination, the clinical diagnosis, classification and classification of hypothyroidism have become increasingly scientific. This article describes the clinical value of thyroid hypothyroidism (T_3, T_4, thyrotropin (TSH) and thyrotropin-releasing hormone (TRH) excitability test) and the clinical features of hypothyroidism and complications, so that the early and Accurately increase the rate of hypothyroidism. First, the cause of hypothyroidism and anatomical positioning diagnosis (a) thyroid hypothyroidism, also known as primary hypothyroidism, lesions in the thyroid gland, accounting for the vast majority of hypothyroidism. In addition to medical treatment of this disease, thyroid congenital absence, endemic goiter easily diagnosed, the other is more difficult to diagnose; part of the reason may be unknown and a