children and young people have their plasma electrolyte concentrations and blood glucose measured and documented when starting IV fluids and then at least every 24 hours. A standardised fluid balance ...

The most accurate quantification is through a 24-hour urine collection and incorporates ... along with interventions to preempt and treat outcomes of fluid and electrolyte imbalance.

Antidiuretic hormone (ADH) is responsible for regulating the balance of fluid and salt in the body ... receive radioactive isotopes during the 24-hour period leading up to the test.