Sodium Correction Rate (Hyponatremia / Hypernatremia)
Teaching estimates: total body water (TBW) from weight and sex, then change in serum sodium per liter of infusate (Adrogue–Madias).
Calculator
How it works
The Adrogue–Madias relationship predicts the initial direction and magnitude of change from a chosen fluid, but does not replace serial sodium checks, urine output, and cause-specific therapy.
Limits
Severe symptoms, acute water intoxication, SIADH with fludrocortisone use, pregnancy, and pediatric patients require specialist pathways. Hypertonic saline dosing must follow institutional policy.
Educational tool only—not for diagnosis or treatment decisions.