it is useful to restrict water intake to less than one litre
per day. Diuretics should be ceased and reinstated when the serum sodium begins to climb, while maintaining water restriction.Rarely is it necessary to administer hypertonic saline. Normal saline is never administered to hyponatraemic patients with oedema as it will make matters worse. If hyponatraemia needs correction with intravenous hypertonic saline, the rate of correction should not be excessive, as there is a risk of demyelination in the central nervous system