Claim: Primary polydipsia treatment depends on weight gained and estimated serum sodium, though intervention is not needed until sodium levels are over 150.
Evidence: Estimation of serum sodium levels from weight gain and suggested interventions 0-3 140 - 134 No direct intervention, monitoring 3-5 133 - 130 Redirection from water sources 5-7 129–126 Oral NaCl and redirection