Answer:
If she complains about progressive pain or pain while moving the wrist
Explanation:
When the teenage girl fell upon her wrist, she might have broken her wrist. If she complains about progressively increasing pain and also feels pain while moving her wrist, then it would be clear that might be her wrist bone has broken.
Generally people break their bones while playing in games where they try to catch themselves or land on ground on their wrist. Some common early symptoms of broken of bones are – Bruising, tenderness, swelling, deformity in bone, pain in wrist etc.