Hyperkalemic emergency(HE)refers to life-threatening hyperkalemia consisting of a high serum potassium level with severe complications(e.g.,dysrhythmias,cardiac arrest,or myopathy).[1]Hyperkalemic emergencies(HEs)are commonly encountered(2%-3%)in the emergency department(ED).[2,3]In-hospital mortality rate for hospitalized hyperkalemic patients is about 14.1%and 4.5 times higher than that of those with normal potassium.[4]Quick recognition and treatment are critical for decreasing morbidity and mortality.[5]Nevertheless,great variety and sparse evidence lie in current HE treatment.In this article,we will review the current medical literature on the treatment of HEs and propose a treatment flowchart for HEs(Figure 1).