Units: US SI

Sodium Deficit in Hyponatremia

Is patient female? Yes
Normal Pt Weight lbs
Serum Na mEq/L
Desired Na mEq/L
Sodium Deficit mEq

Sodium Deficit = Total Body Water * Normal Wt in kg * (Desired Na - Pt's Na) (TBW = 0.6 if male and 0.5 if female)

Remember not to correct too rapidly to avoid central pontine myelinolysis!

Equations

Scores