Electrolytes & fluids Health Calculators

Sodium Deficit Calculator

Sodium Deficit Calculator

The calculation of sodium deficit is necessary when aiming to keep the patient in the state of optimal electrolyte balance.

The provided equation uses the patient’s weight, their serum sodium (Na⁺) concentration, and the desired serum sodium concentration. Assignment to the correct age/sex group is also needed for the best estimation of total body water, which is included in the sodium deficit formula.

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