... mortality rates in patients presentingwith hypernatraemia than in those acquiring the disorder ( 43% versus 39 %) [12]. Similarly, in a retrospective five-year review of a medical ICU in France, ... Care Medicine, University of Calgary, Foothills Medical Centre, EG 23, 14 03- 29 Street NW, Calgary, AB T2N 2T9, Canada2Department of Community Health Sciences, University of Calgary, Calgary, AB ... patients and hypernatraemia in 2157(26%) patients with an incidence density of 3. 1 and 7.4 per 100days of ICU admission, respectively, during 29,142 ICUadmission days. The incidence of both ICU-acquiredhyponatraemia...