The human body doesn't take kindly to radical physiological changes. Victims of earthquakes or other events that cause compression also require special care. The layman's reaction is to always 'do something' oblivious to the medical maxim ' do no harm.' It's not unlike horseowners who trowel salves into a cut for the DVM to remove while the Bute wears off. Unless we are Trustbox or Paramedicpete, a field reference, ie WHERE THERE IS NO DOCTOR and a means of getting the victim to one take a prominent place in my FAK.