Would the girl who was subjected to a shooting incident that led paramedics to tear her clothes due to the severity of her injury be embarrassed? And what is incumbent upon her if she is sinful?

There is no blame on a woman for exposing her 'awrah (private parts) to a doctor out of necessity and need. Indeed, it may become obligatory if it leads to saving a life from perishing. There is also no blame on the doctor for this, provided that he restricts himself to the area of need.