🧂 Hyperglycemia-Corrected Sodium
Correct measured sodium for hyperglycemia to reveal the true sodium status.
Hyperglycemia-Corrected Sodium
Measured sodium (mmol/L)
Glucose (mmol/L)
When to use
Avoid misreading dilutional hyponatremia in hyperglycemic patients.
How it works
Katz: Na + 0.016 × (glucose mg/dL − 100). Hillier: Na + 0.024 × (glucose mg/dL − 100), closer at severe hyperglycemia.
Key points
- Hyperglycemia causes dilutional (pseudo) hyponatremia.
- The corrected value predicts sodium once glucose is normalized.
- Recheck electrolytes during glucose correction.
References
Decision support for licensed clinicians only; not a substitute for clinical judgement, diagnosis or local protocols.