对低钾危象184例进行临床分析发现,好发于婴儿营养不良,主要因呕吐、腹泻引起,证实镁和钾协同作用,补钾同时补镁,可使血清钾更快恢复。低钾引起低钾性心肌炎,应用高浓度钾溶液0.35％～0.45％静脉点滴,无1例发生心脏骤停,病情能较快控制,预后良好,同时也提示低钾危象与婴儿死亡有密切联系,在原因不明呼吸抑制、神志异常、瘫痪和心律失常病例中应常规检查血清钾。 Clinical analysis of 184 cases of low potassium crisis found that occurs in infantile malnutrition, mainly due to vomiting, diarrhea, confirmed the synergistic effect of magnesium and potassium, while potassium supplement magnesium, serum potassium can be restored faster. Hypokalemia caused by hypokalemic myocarditis, the application of high concentrations of potassium 0.35% ~ 0.45% intravenous drip, no cardiac arrest occurred in 1 case, the disease can be quickly controlled, the prognosis is good, but also suggests that low potassium crisis and infant mortality are closely linked Contact, in unexplained respiratory depression, psychiatric disorders, paralysis and arrhythmia cases should be routine examination of serum potassium.