\>5
causes- acute and chronic renal failure, excessive release from cells secondary to traumatic injury, severe infection, burn, excess IV infusion or oral intake, acidosis, meds, fast growing cancers
s/s- abdominal cramps, diarrhea, hypotension, irregular HR, muscle weakness, nausea, paresthesia (numbness and tingling), convulsions, cardiac arrest
nursing- critically ill, restrict K, correct cause of imbalance, infuse insulin and glucose or Na bicarb, IV of calcium gluconate, kayexalate (diarrhea), dialysis, cardiac monitor, K levels