The objective of this observational study is to evaluate the relationship between ketonemia and emergence delirium in children undergoing general anesthesia. The main questions it aims to answer are:
* Does the level of ketonemia correlate with the risk of emergence delirium in pediatric patients?
* Are there specific perioperative factors that influence this relationship?
If there is a comparison group: Not applicable, as this is an observational study without intervention groups.
Participants will be asked to:
* Provide clinical and demographic information relevant to anesthesia and perioperative care.
* Undergo standard perioperative monitoring, including ketonemia measurement.
* Allow researchers to record anesthesia and recovery outcomes related to emergence delirium.