Albumin-corrected serum calcium using the Payne correction (SI units).
| Field | Unit | Notes |
|---|---|---|
| Calcium | mmol/L | Normal 2.25–2.625 |
| Albumin | g/L | Normal 35–55 |
Albumin-corrected serum calcium using the Payne correction (SI units).
Calcium (mmol/L), Albumin (g/L).
Serum anion gap with optional albumin correction, delta gap and delta ratio.
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.
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