kg
mEq/L
mEq/L
mEq/L
mEq/L
0 mEq/hr
-2-0.500.52

NaNhours

0.57 mEq Na/L infused

0.0 L

NaNml/hr

Calculator to correct hyper/hyponatremia

Effect of addition of 1L of IV fluid infusion (inf):

Δ PNa = ((Na + K)inf - PNa) / (TBW + 1)

Effect of the addition of x liters (V) of IV infusion (inf):

Δ PNa = ((Na + K)inf - PNa) / (TBW + V) * V

Calculating the volume needed to obtain a specific change in PNa where Na2 is the target sodium:

V = (Δ PNa * TBW) / ((Na + K)inf – Na2)