To illustrate, for a patient with serum sodium of 124 mEq / L (124 mmol / L) and glucose of 600 mg / dL (33.3 mmol / L), add 1.6 ([600 − 100] / 100) = 8 mEq / L (8 mmol / L) to 124 for a corrected serum sodium of 132 mEq / L (132 mmol/L).