Which factor is better?

1.6 is classic; 2.4 may better fit higher glucose ranges. Follow institutional preference.

Corrected Sodium (Hyperglycemia)

Nephrology Critical Care Emergency Medicine General Medicine

Medical context

Correct measured sodium for hyperglycemia using Katz (1.6) or Hillier (2.4) factors.

Nephrology and medicine teams use this when interpreting renal function, electrolytes, or fluid plans.

This page explains the Corrected Na formula, how to interpret the output, known limitations, and peer-reviewed references so you can verify results against primary sources and local protocols.

It is grouped under Nephrology because kidney function, electrolytes, and renal dosing helpers.

How to use this calculator

Enter the values requested by the Corrected Na calculator using the units shown beside each field.
Review the calculated result and read the interpretation section before acting on the output.
Check limitations and references if the result will change management, dosing, or disposition.
Use the related calculators section when you need supporting values (for example electrolytes, weight, or complementary risk scores).

Calculator

Measured sodium (mEq/L)Glucose (mg/dL)Correction factor

Result

133.2 mEq/L

Corrected for glucose (factor 1.6)

Corrected Na ≈ measured Na + factor × (glucose − 100) / 100.

Educational use only. Confirm results with clinical judgment, primary sources, and local protocols. Not a substitute for professional medical advice. Full disclaimer.

Formula

Corrected Na ≈ measured Na + factor × (glucose − 100) / 100.

Interpretation

Helps interpret true sodium status in marked hyperglycemia (e.g., HHS).

Limitations

Does not replace clinical assessment of volume status or tonicity.

Frequently asked questions

Which factor is better?: 1.6 is classic; 2.4 may better fit higher glucose ranges. Follow institutional preference.
Is the Corrected Na result enough to make a treatment decision?: No. Calculators support medical decision-making but do not replace examination, shared decision-making, institutional protocols, or consultant input when stakes are high.
Does Calcmedical store the values I type in?: Inputs are processed in your browser for this session. We do not ask for patient names or medical record numbers. See our privacy policy for hosting and analytics details.

References

Katz MA. Hyperglycemia correction factor
Hillier TA et al. Alternative 2.4 factor