Sodium Correction

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Calculate sodium change per liter of infusate (Adrogue-Madias Formula).

Patient & Fluid Data

Current Serum Sodium

mEq/L

Infusate Sodium

Custom mEq/L

Patient Weight

Patient Sex

Correction Analysis

Na Change (per 1L)0.67mEq/L

1 mEq ∆ Volume1.48Liters

Formula Output Summary

Infusing 1 liter of this fluid will raise the serum sodium by approximately 0.67 mEq/L.

Safety Warning

NEVER exceed 8-10 mEq/L correction in 24 hours for chronic hyponatremia to avoid severe neurological complications.

About this calculator

Overview

The Sodium Correction calculator uses the Adrogue-Madias formula to estimate the change in serum sodium concentration resulting from the infusion of 1 liter of a specific fluid. It is essential for managing hyponatremia and hypernatremia safely without causing osmotic demyelination syndrome.

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Pro Tips

Aim for a correction rate of 4-6 mEq/L per 24 hours in chronic cases.
Monitor serum sodium every 2-4 hours during the initial phase of correction.
Account for other fluid losses (urine, sweat) which this formula does not include.

Fun Facts

"Total Body Water (TBW) is typically 60% of weight for men and 50% for women."
"Rapid correction of chronic hyponatremia (>8-10 mEq/L in 24h) can lead to Central Pontine Myelinolysis."
"D5W contains no sodium and will lower the serum sodium concentration."
"Hypertonic saline (3%) is used for symptomatic or severe hyponatremia."

Formula: Change in Serum Na = (Infusate Na - Serum Na) / (Total Body Water + 1).