A nurse is caring for a school-age child who is experiencing a tonic-clonic seizure. Which of the following actions should the nurse take?

A. Administer magnesium sulfate IM to the child: Magnesium sulfate is not indicated for managing tonic-clonic seizures in children. Seizure management focuses on safety and prescribed antiepileptic medications. B. Place a folded blanket under the child's head: Providing padding under the head helps protect against injury during the convulsive phase of a seizure. This is a safe and appropriate nursing action that does not restrict movement or cause harm. C. Put a tongue blade between the child's teeth: Inserting any object into the mouth during a seizure can cause dental damage, airway obstruction, or injury to the mouth. This practice is outdated and unsafe. D. Prevent movement of the child's extremities: Restricting limb movement during a seizure may lead to musculoskeletal injury. The focus should be on protecting the child from nearby hazards while allowing the seizure to progress naturally.