Hospital-acquired hyponatraemia can be fatal. It is associated with excessive volumes of hypotonic intravenous fluids. A cross-sectional survey in 17 hospitals found 77/99 children receiving intravenous fluids received hypotonic solutions, 38% received >105% of fluid requirements. 21/86 were hyponatraemic, but only 79% had electrolytes checked in the preceeding 48 hours. Intravenous fluids should be used with caution with regard to the tonicity and volume administered, and appropriate monitoring of serum electrolytes.
- intravenous fluid administration