Estimates safe sodium-correction rate and fluid replacement for a child with hyponatremia (Na < 135).
| Field | Unit | Notes |
|---|---|---|
| Weight | kg | 0.5–150 |
| Serum sodium | mEq/L | measured (< 135) |
| Dehydration | % | clinical estimate, e.g. 5–10 |
Estimates safe sodium-correction rate and fluid replacement for a child with hyponatremia (Na < 135).
Weight (kg), Serum sodium (mEq/L), Dehydration (%).
CRITICAL: the displayed number is the safe 24h target, not the full deficit. Over-correction causes osmotic demyelination. Verify against protocol; clinician sign-off required.
Serum anion gap with optional albumin correction, delta gap and delta ratio.
Albumin-corrected serum calcium using the Payne correction (SI units).
Daily maintenance fluid requirement using the Holliday-Segar method.
Estimates free-water deficit and fluid replacement for a child with hypernatremia (Na > 145).
Adjusts measured serum sodium for the dilutional effect of hyperglycaemia (e.g. in DKA).
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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