Sodium Correction Calculator

Written by Great Medico

Updated September 24, 2026 •2 min read

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When sodium, bicarbonate, osmolality, or an infusion rate is changing, clean arithmetic matters. Sodium Correction Calculator focuses on the exact variables shown in the tool and returns the estimate its engine supports.

What this calculator does

Sodium Correction Calculator uses Patient sodium and Serum glucose to calculate glucose-corrected sodium. Where supported, it also shows Katz 1.6 factor so the primary result is easier to check. It follows the exact field flow and engine behavior in this plugin rather than describing a different calculator with the same name. Fluid and electrolyte formulas are sensitive to units, timing, ongoing losses, kidney function, and rapidly changing physiology. They are most useful as structured estimates alongside repeat measurements and bedside assessment.

How to use it

Enter or select Patient sodium and Serum glucose. Use the units offered by the calculator and keep paired laboratory or treatment values from the same clinical episode whenever the formula assumes that. If an entry is unknown, do not substitute a guess simply to obtain a number.

How the calculation works

For hyperglycemia, the calculator reports sodium corrected with a 2.4 mEq/L rise for each 100 mg/dL glucose above 100. It also displays the older 1.6-factor result for comparison.

Example

Using the sample values prefilled in this calculator, the primary result is 134.8 mmol/L (Corrected sodium) and Katz 1.6 factor is 133.2 mmol/L. This example demonstrates the plugin’s own calculation path; replace the sample inputs with verified values before interpreting a real result.

How to interpret the result

Read the output as corrected sodium from the implemented formula. Compare it with measured values, volume status, ongoing inputs/losses, and serial trends; treatment decisions should not rely on the calculator in isolation.

Limitations and notes

Glucose correction factors are approximations and can vary with the degree and speed of hyperglycemia. Corrected sodium is an interpretive aid, not a treatment target by itself.