You bet your bupkiss I will defend my right to defend myself. Just because I became a nurse does not mean I gave up my civil rights. As far as the facilities that say not to inflict pain - I can agree to a point; use just enough force to get away. And if it comes down to it - I'm the one that will be going home that night.
If the bleeding hearts and facilities tell you how awful you are for defending yourself, let them get abused in your place, and we'll see how quick that whiny little tune changes.
If the facility still was insistent that you let yourself get abused and/or killed, tell them you require that policy in writing for your attorney to review, because they are not providing a safe workplace - they are guaranteeing a hostile work environment.
Now, all that being said - if it's a head injury, or little demented old person - I'm gentle as I can be for as long as I can be, but if force is required to get away, so be it. The hospital won't provide for my 3 children if I don't work...
As for the people that make the choice to be an ass - then it's on. I don't provoke it by any meas, but they will have a fight on their hands, as I REFUSE to let myself be intimidated.
Good luck to you - hope all is healing well, and WAY TO GO for defending yourself!