8 calculators in Fluids & Electrolytes.
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 safe sodium-correction rate and fluid replacement for a child with hyponatremia (Na < 135).
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.
Estimates the sodium deficit needed to raise serum sodium to a target in a hyponatraemic child.
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