Sodium Correction for Hyperglycemia
Calculates corrected serum sodium in patients with hyperglycemia.
Formula:
Corrected Na⁺ = Measured Na⁺ + Correction Factor × [(Glucose mg/dL − 100) / 100]
If glucose is entered in mmol/L, it is converted to mg/dL by multiplying by 18.
Corrected Na⁺ = Measured Na⁺ + Correction Factor × [(Glucose mg/dL − 100) / 100]
If glucose is entered in mmol/L, it is converted to mg/dL by multiplying by 18.
Clinical note: This calculator is for educational and clinical support purposes only.
Interpret results in the context of the full clinical picture and local guidelines.
References
- Katz MA. Hyperglycemia-induced hyponatremia: calculation of expected serum sodium depression. N Engl J Med. 1973.
- Hillier TA, Abbott RD, Barrett EJ. Hyponatremia: evaluating the correction factor for hyperglycemia. Am J Med. 1999;106(4):399-403.
- MSD Manual Professional Edition. Sodium Correction in Hyperglycemia calculator.
