Key points are not available for this paper at this time.
Hyponatraemia occurs in many different systemic disease states and is the most frequent electrolyte abnormality seen in a general hospital population, with an incidence of about 1%.' 2 Hyponatraemia is usually the result of dilution, although both total body water and extracellular volume may be high, low, or normal.
Allen I. Arieff (1993) studied this question.