In hyponatremia following renal failure sodium level should be maintained at -

Hyponatremia in CKD population is associated with increased moality, but the effect on renal outcome was unknown. ... Hyponatremia (serum sodium <135 mEq/L) was associated with excessive volume and volume depletion, measured as total body water by bioimpedance analysis, in diuretic users, but not in diuretic non-users. Ref Harrison20th edition pg 234