低钾血症临床常见,流行病学的资料表明,住院患者中,约20%的人有低钾血症,而服用噻嗪类利尿剂的住院患者,低钾血症者又增加了10%~40%。而室颤成功复苏者中,高达50%的患者伴有低钾血症。严重低钾血症可引起恶性心律失常和心脏骤停,已引起临床医生的足够重视。临床引起低钾血症的病因很多,包括摄入不足、钾丢失过多及血钾转移进入细胞内等,交感性低钾是近年来逐渐被重视的一种病因。[定义]体内交感神经系统兴奋时,可引起血钾从 Hypokalemia clinically common, epidemiological data show that about 20% of hospitalized patients have hypokalemia, while taking in patients with thiazide diuretics, hypokalemia and an increase of 10% ~ 40%. Among the successful recovery of ventricular fibrillation, up to 50% of patients with hypokalemia. Severe hypokalemia can cause malignant arrhythmia and cardiac arrest, has attracted enough attention of clinicians. Clinical causes of hypokalemia caused by many causes, including inadequate intake, excessive loss of potassium and potassium into the cells, etc., the sympathetic hypokalemia is gradually been a cause of attention in recent years. [Definition] Sympathetic nervous system in vivo excitement, can cause potassium from