A nurse is caring for a 3-year-old child immediately following a tonic-clonic seizure. Which of the following actions should the nurse take?

After a tonic-clonic seizure, the nurse should first check the child for any injuries, particularly in the oral cavity. This is because during a seizure, the child's tongue may have been biten, or there may be other oral injuries. Therefore, it is essential to check the oral cavity for any injury or bleeding.