Hyponatremia tx

• When both sodium and water have been lost, replace both water and sodium w/ isotonic ringer or isotonic saline.
• Hypertonic (3% or 5% NaCl) may be necessary if pt. have very low plasma volume
• For dilutional hyponatremia, administer loop diuretic and restrict fluids.
• For mild hyponatremia, increasing fluid intake of sodium may restore the balance

Risk for ineffective cerebral tissue perfusion. Brain cell swells increasing cranial pressure.