Pseudo hyperkalemia is an elevation of serum potassium without increase in plasma potassium. A 55 years male, post splenectomy status for splenic abscess was referred to us for persistent hyperkalemia. His renal function test were normal. ECG showed no signs of hyperkalemia. Inspite of repeated corrections by calcium gluconate, insulin dextrose drip and asthalin nebulization serum potassium remained elevated. On doing plasma potassium levels it was found that elevated potassium was Pseudo hyperkalemia. Awareness about this condition can prevent misdiagnosis and unnecessary treatment.