Shifting potassium from the extracellular to the intra- cellular compartment remains a mainstay of acute treat- ment. Insulin and beta-2 adrenergic agonists (e.g., salbu- tamol/albuterol) decrease serum potassium by stimulat- ing the Na/K-ATPase pump, shifting potassium from the extracellular to the intracellular compartment in exchange for sodium.