Patients who develop hypernatremia (> 148 mEq/l) during the test without concentrating their urine (urine osmolality < 300 mOsm/kg) have either severe central or nephrogenic DI. These can be ...

Lindner et al. have screened the database of a Viennese intensive care unit (ICU) to determine the prevalence of hypernatremia, its impact on mortality, and whether it affects length of stay.

The diagnosis of diabetes insipidus can be confirmed by continued hypotonic polyuria in the presence of hypernatremia and/or hyperosmolality. [8] Measurement of urine osmolality or specific ...