P.F., a 3-year-old child, ASA-I, is undergoing a tonsillectomy. General anesthesia will be induced and maintained with sevoflurane and nitrous oxide. His surgery was uneventful, with a duration of 30 minutes. He was awakened from anesthesia and transferred to the PACU to recover. Shortly after he arrived, P.F. became extremely restless and began crying. The nurse and his mother were unable to console him. Could this reaction be attributed to sevoflurane, and if so, can it be prevented?