Consideration for ICU for frequent electrolyte checks and close cardiac monitoring
Hyperkalemia
Pseudohyperkalemia: hemolyzed specimen, prolonged tourniquet use prior to blood draw, thrombocytosis or leukocytosis
Hyponatremia
Redistribution 
Hypernatremia
Acidemia 
Hypokalemia
Cellular breakdown: see Rhabdomyolysis/Crush syndrome, electrical/thermal burn, hemolysis, see Tumor lysis syndrome