Description
Abnormalities that increase water reabsorption can lead to hyponatremia, and the resulting water retention presents the threat of CNS volume changes. Avoid overcorrection of hyponatremia, however, as this causes similar changes. Also, be aware of iatrogenic development of hypotonicity in groups of patients prone to hyponatremia. Careful administration of hypotonic fluids, identification of diseases associated with hyponatremia, and cautious correction will decrease the prevalence, incidence, and complications of this common disorder of tonicity.