Corrected Sodium Calculator (Hyperglycemia)
Estimate sodium correction for hyperglycemia using common clinical adjustment formulas.
Understanding this tool
Why nurses use it
Hyperglycaemia pulls water into the vascular space and lowers measured sodium. Corrected sodium estimates what the sodium would be if glucose were normal — important in DKA and HHS interpretation.
When to use it
Use when glucose is markedly elevated and you are interpreting sodium trends during DKA/HHS management.
Calculate
How to use this calculator
- Enter measured sodium and serum glucose.
- Select correction factor (1.6 or 2.4) per local protocol.
- Use corrected sodium alongside osmolality, ketones, and fluid plans.
How the calculation works
Corrected Na ≈ Measured Na + factor × [(glucose − 100) ÷ 100]. Factor 1.6 is common; some protocols use 2.4 for extreme hyperglycaemia.
Formula used by this tool — verify units before applying at the bedside.
Worked example
Limitations & clinical notes
- Formulas vary (1.6 vs 2.4 correction factor).
- Clinical management of DKA/HHS requires serial labs and protocol-driven correction.
References
Key sources: DKA/HHS management guidelines.
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Disclaimer: This calculator is for educational and bedside double-check purposes only. It does not replace institutional protocols, prescriber orders, pharmacist verification, or clinical judgment. Always follow your local policies — especially for high-risk medications, infusions, pediatrics, and critical care. If the patient is acutely unwell, escalate immediately rather than relying on any calculator output.