A nurse enters the room of a school-age child and finds them on the floor experiencing a tonic-clonic seizure. Which of the following actions should the nurse take?

A. Place a pillow under the child's head: This is correct. The nurse should place a soft object, such as a pillow or folded blanket, under the child’s head to prevent head injury during a seizure. It is important to protect the patient from harm without interfering with the seizure. B. Turn the child onto their back: This is not advisable during a seizure. The child should remain in a safe position, preferably on their side to help maintain the airway and prevent aspiration. Turning onto their back is not a first-line intervention. C. Place a padded tongue blade in the child's mouth: This is incorrect. A padded tongue blade should never be inserted into the mouth during a seizure, as it can cause dental or oral injury, and may lead to aspiration or choking. D. Restrain the child's upper extremities: Restraining the child is not recommended during a seizure. The child should not be physically restrained during the event, as this could cause injury or increase the risk of aspiration. The nurse should focus on providing safety and not interfering with the natural movements during a seizure.