例l,女,42岁。1979年10月起常因失眠、心悸、胸闷、易激动和高血压而就医。1980年2月因看电影时二下肢麻痹而就医。检查:二下肢感觉正常,腱反射消失。肌力O度,血钾12mg％,诊断为低血钾导致的双下肢麻痹。给予补充钾盐后第二天恢复正常。以后常因劳累,寒冷等反复发作,补充钾盐后在1～2天内恢复。1981年2月再次因二下肢麻痹就医,检查:眼征(-),甲状腺Ⅱ度弥漫性肿大,无结节,橡皮感,无血管杂音,心率140次,律齐,双肺(-),腹软平 Example l, female, 42 years old. October 1979 often insomnia, palpitations, chest tightness, irritability and high blood pressure and seek medical advice. In February 1980, he was hospitalized for paralysis of his lower limbs while watching a movie. Check: two lower limbs feel normal, tendon reflex disappears. Muscle strength O, serum potassium 12mg%, diagnosed as hypokalemia caused by lower limb paralysis. After giving potassium salt returned to normal the next day. After often due to fatigue, cold and other recurrent, potassium salt after the recovery within 1 to 2 days. February 1981 once again due to paralysis of the lower limbs for medical examination: Eye sign (-), diffuse thyroid enlargement, nodules, rubber feeling, no vascular murmur, heart rate 140, law Qi, lungs (-) Abdominal soft flat