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Medical CalculatorMedical

Sodium Deficit Calculator

Calculate sodium deficit for hyponatremia management and fluid replacement planning.

Updated 2024-12-154 min readCalzyra Health Team

Calculator

Enter your values below

Health CalculatorEvidence-Based

kg

Body weight in kilograms

mEq/L

Current serum sodium level

mEq/L

Target serum sodium level

Formula & Methodology

How this calculator works

Na deficit = TBW × (Target Na - Current Na); TBW = weight × 0.6 (male) or 0.5 (female)

Sodium deficit is calculated using total body water and the difference between target and current sodium levels.

Frequently Asked Questions

Common questions about this calculator

Medical Disclaimer

Medical calculators are clinical decision support tools. They should be used by qualified healthcare professionals and do not replace clinical judgment.

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References

WHO GuidelinesCDC ResourcesAHA Recommendations