You are dispatched to the local high school for a "person struck with a baseball." you arrive on the scene and find a 16-year-old male sitting on the bench. apparently he was the pitcher and was struck in the abdominal area by a line drive ball that was hit very hard. he states that nothing is hurting except he has some mild pain in the area where he was struck. he is upset that the ambulance was called and wants to go back into the game and continue pitching. your exam reveals nothing remarkable except mild pain when you palpate the injured area. vital signs are normal. what is the next step?