Calculator

Sodium corrected for glucose

New

Na + 2.4 × (glucose − 100)/100 (Hillier; Katz uses 1.6).

mmol/L
mg/dL

Corrected Na

140 mmol/L

Formula

na + 2.4 * (glucose - 100) / 100

References

  1. Hillier TA, Abbott RD, Barrett EJ. Hyponatremia: evaluating the correction factor for hyperglycemia. Am J Med 1999;106:399-403.

Used in

HyponatraemiaDiabetic ketoacidosis (including euglycaemic DKA)Hyperosmolar hyperglycaemic state (HHS)Paediatric diabetic ketoacidosis

Calculators support, not replace, clinical judgement. Check inputs and units, and confirm doses with your unit protocol.