Spinal injury
Spinal injury could be at any part of the vertebrae, which starts at the base of the brain to the coccyx. It consists of a spinal chord running through the center of the vertebrae.
Consider any trauma to the area if it was related to Motor vehicle, motorcycle/scooter, bicycle crash, fall of any kind, any sport that would use force.
Symptoms that could appear, pain in the area, numbness, tingling, loss of sensation, paralysis, bladder and bowel loss, altered mental status. Don’t be fooled if these symptoms don’t appear immediately. They can worsen over time.
It is best to stabilize the victim in the position found. Watch for possible shock (cover gently with a blanket). Watch for breathing. The good Samaritan law will come into play, if they go unresponsive and not breathing. Remember Cardiac Trumps Trauma.