Final answer:
When treating school-aged children with DDAVP for diabetes insipidus, it's crucial to monitor for signs of fluid overload to avoid complications such as hyponatremia.
Step-by-step explanation:
An important consideration for the school-aged child taking DDAVP for diabetes insipidus is monitoring for signs of fluid overload. DDAVP, or desmopressin, is a synthetic form of antidiuretic hormone (ADH) used to treat diabetes insipidus, which is marked by an underproduction of natural ADH leading to excessive production of dilute urine (polyuria) and increased thirst (polydipsia). Since DDAVP helps the kidneys to decrease urine production and retain water, there's a risk of fluid overload which must be carefully monitored to prevent hyponatremia and other complications associated with overhydration.