🧪 Corrected Sodium for Hyperglycaemia
Correct measured sodium for hyperglycaemia to reveal the true sodium status.
Clinical takeaway
Hyperglycaemia dilutes serum sodium.
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When to use
Interpret sodium in patients with marked hyperglycaemia (e.g. DKA/HHS).
How it works
Corrected Na = measured Na + 1.6 × (glucose − 100)/100 (mg/dL); the 2.4 factor (Hillier) is often better at glucose > 400.
Key points
- Hyperglycaemia dilutes serum sodium.
- Use corrected sodium to judge true hypo-/hypernatraemia.
- Reassess as glucose falls with treatment.
References
Decision support for licensed clinicians only; not a substitute for clinical judgement, diagnosis or local protocols.
Worked calculation
The values below come from this tool's own example placeholders and are computed server-side with the formula shown on this page, so the arithmetic can be checked quickly. It demonstrates how to substitute values only — it is not clinical advice and not a real case.
| Measured sodium | 130 mmol/L |
|---|---|
| Glucose | 600 mg/dL |
→Corrected Na (×1.6)138.0mmol/L
- Corrected Na (×2.4, Hillier)：142.0 mmol/L
- Formula：Na + 1.6 (or 2.4) × (glucose − 100)/100, mg/dL
Frequently asked questions
- What is Corrected Sodium for Hyperglycaemia?
- Correct measured sodium for hyperglycaemia to reveal the true sodium status.
- How is Corrected Sodium for Hyperglycaemia calculated? What is the core formula?
- Corrected Na = measured Na + 1.6 × (glucose − 100)/100 (mg/dL); the 2.4 factor (Hillier) is often better at glucose > 400.
- When is Corrected Sodium for Hyperglycaemia used?
- Interpret sodium in patients with marked hyperglycaemia (e.g. DKA/HHS).
- What are the key clinical points for Corrected Sodium for Hyperglycaemia?
- Hyperglycaemia dilutes serum sodium. Use corrected sodium to judge true hypo-/hypernatraemia. Reassess as glucose falls with treatment.
- What are the limits and cautions when using Corrected Sodium for Hyperglycaemia?
- For licensed clinicians and clinical researchers. Interpret results with history, investigations and local protocols; not a diagnosis or prescription, and not a substitute for multidisciplinary decision-making or local guidelines.
- How is Corrected Sodium for Hyperglycaemia calculated in practice? Can you show a worked example?
- Inputs: Measured sodium 130 mmol/L, Glucose 600 mg/dL → Result: Corrected Na (×1.6) 138.0 mmol/L（Corrected Na (×2.4, Hillier): 142.0 mmol/L, Formula: Na + 1.6 (or 2.4) × (glucose − 100)/100, mg/dL）