【名词&注释】
甲状腺(thyroid)、原发性(primary)、脾肾阳虚(yang deficiency of spleen and kidney)、密切相关(closely related)、肾阳虚衰(deficiency of the kidney-yang)、记忆力减退(loss of memory)、手少阳三焦经、双下肢(both lower limbs)
[填空题]女性患者,45岁,近半年来体重明显增加,近2月来自感疲劳、怕冷,记忆力减退(loss of memory),厌食、腹胀、便秘,月经紊乱,双下肢(both lower limbs)凹陷性水肿。
对确定原发性甲减的病因下列检查最有价值的是