病历摘要患者,女,34岁。病因不明低血钾症十年,长期内服氯化钾,血清钾维持在3.3mmol/L左右,当血清钾低至2.3～2.5mmol/L时,口渴喜饮、多尿、恶心、心悸、便秘、乏力、四肢抽搐、嗜睡。平素极度消瘦、粘膜皮肤干涩、心电图常呈不同程度低钾改变。常规静脉补充氯化钾,仅能暂时缓解症状。1986年6月患者病情加重,精神萎糜,嗜睡,肢软行动困难, Patient history, female, 34 years old. Etiology unknown hypokalemia ten years, long-term oral potassium chloride, serum potassium maintained at 3.3mmol / L or so, when the serum potassium as low as 2.3 ~ 2.5mmol / L, thirst hi, polyuria, nausea, palpitations, Constipation, fatigue, limbs twitching, lethargy. Usually extremely thin, mucocutaneous dry skin, ECG showed varying degrees of hypokalemia often change. Regular intravenous potassium chloride, can only temporarily alleviate the symptoms. In June 1986, the patient’s condition worsened, the spirit of miliary, drowsiness, limb soft action difficult,