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Fluids & Electrolytes

Hypernatremic Dehydration

Estimates free-water deficit and fluid replacement for a child with hypernatremia (Na > 145).

Scope: Estimate only; correction-rate limits are clinically critical. Verify against protocol.

Inputs

FieldUnitNotes
Weight kg 0.5–150
Serum sodium mEq/L measured (> 145)
Dehydration % clinical estimate, e.g. 5–10

FAQ

What is the Hypernatremic Dehydration?

Estimates free-water deficit and fluid replacement for a child with hypernatremia (Na > 145).

What inputs does the Hypernatremic Dehydration need?

Weight (kg), Serum sodium (mEq/L), Dehydration (%).

Are there any limitations?

Estimate only; correction-rate limits are clinically critical. Verify against protocol.

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Estimates the free-water deficit in a hypernatraemic child, to guide the volume needed to return sodium to 140 mEq/L.

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