2. Much of the active T3 is derived from the conversion of T4 into the peripheral tissues. 3. Because more than 99% of T4 is bound to TBG, ultimately only a tiny fraction of less than 1% of free T4 is effectively the one that provides T3 for the organs and tissues of the body to...
正常TSH值的範圍在0.5~5.0 mU/L;free T4在0.8~1.8 ng/dL之間,一般篩檢應先測量TSH 值,若是過高則再次測量TSH及free T4來判斷,反之則不檢查。若TSH過高(通常>10 mU/L3)且free T4過低,則認定是甲狀腺低下,應開始給予補充治療。劑量與療效監測則依所測量到的血清T4濃度進行調整。 藥物治療 主要治療藥品為口服...
[20] Hickman PE, Koerbin G, Simpson A, et al. Using a thyroid disease-free population to define the reference interval for TSH and free T4 on the Abbott Architect analyser [J]. Clin Endocrinol (Oxf), 2017, 86(1): 108-12. DOI: 10.1111/c...
The set point of the hypothalamic-pituitary-thyroid axis for an individual is thought to be genetically determined and has been described as a log-linear relationship of serum TSH to free thyroxine (T4); however, the validity of this hypothesis has yet to be established in older people. The ...
由於TSH的敏感度遠高於T3、T4,因此一般體檢主要是以TSH來做篩檢。如果TSH偏低或偏高,而T3、T4正常,就稱為隱藏性甲狀腺機能亢進(低下)。此時患者並不會有上述甲狀腺 ...。
意见建议：由于T3T4的参考值各地不一样，需要看一下你的报告单，如果明显升高，可以用抗甲状腺素药物...
Tsai:Our primary care colleagues can do a workup and interpretation of thyroid function tests in most cases. In the situations where the thyroid function test results are discordant (ie, elevated TSH and elevated free T4 levels or low TSH and low free T4 levels) or difficult to interpret, ...
Objective: To evaluate the association of TSH, free T3 (FT3), free T4 (FT4), and conversion (FT3:FT4) ratio values with incident hypertension. Materials and methods: The study included data from participants of the ELSA-Brasil study without baseline hypertension. Serum TSH, FT4 and FT3 levels...
参考资料:Saravanan P, et al. Twenty-four Hour Hormone Profiles of TSH, Free T3 and Free T4 in Hypothyroid Patients on Combined T3/T4 Therapy. Experimental and Clinical Endocrinology & Diabetes. 2007;115(04):261-267. doi:10.1055/s-2007-973071....
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