All of the following are major complications of massive transfusion, except -

Major complications in blood transfusion are fever,chills,tachycardia ,flushing ,rigor,uicaria,abdominal pain,shoeness of breath,anaphylactic shock,transmission of infection,air embolism ,thrombophlebitis,circulatory overload. Since very rapid hemolysis is a compliacation of transfusion ,hyperkalemia occurs.Reference:Davidson's principles & practice of medicine 22nd edition pg no 1016.