If a school-age child has a fingerstick glucose result of 45 mg/dL, what action should the nurse take?

In cases of hypoglycemia, such as when a school-age child presents with a fingerstick glucose result of 45 mg/dL, the primary and immediate action is to provide a source of quick-acting glucose. Administering 10 to 15 grams of a simple carbohydrate, like glucose tablets, orange juice, or a sugary soft drink, is essential in rapidly increasing blood glucose levels to prevent severe symptoms and potential complications.

Treating hypoglycemia promptly is critical because low blood sugar can lead to confusion, irritability, seizures, or loss of consciousness if not addressed. The goal with this intervention is to raise the child's glucose level quickly, providing relief from symptoms and restoring normal function.

Monitoring subsequent glucose levels or notifying the physician may be necessary steps once immediate care is administered, but they do not address the urgent need to stabilize the child's blood glucose. The administration of insulin in this scenario is inappropriate since the child is already experiencing low blood glucose levels, and delaying treatment to recheck the glucose level could worsen the situation. Therefore, giving a simple carbohydrate is the most effective and appropriate immediate response.