Potassium replacement is similar to that in diabetic ketoacidosis: 40 mEq / hour for serum potassium < 3.3 mEq / L (< 3.3 mmol / L); 20 to 30 mEq / hour for serum potassium between 3.3 and 4.9 mEq / L (3.3 and 4.9 mmol / L); and none for serum potassium ≥ 5 mEq / L (≥ 5 mmol/L).