As an old retired nurse, doing nothing is sometimes the best. Keeping the patient down is also the best as you never know if there may be a broken bone that can cause major problems if the person gets up...stay with the person until medical help arrives and keep them comfortable as possible, but laying still. Fractured cervical bone can lead to paralysis..One of the first things paramedics usually do if put on a cervical collar before moving anyone...
So one day I was driving to a chemo treatment when all of a sudden a motorcycle in front of me spun out on the highway. A woman was driving and went flying. Luckily people were able to block the highway while with their cars and the motorcyclist laid in a crumble in the middle of the highway.
Many - probably 30 people - stood around her calling 911 and caring for her, but no one went near to her. So I went to her and knelt down and talked to her. I told to to stay still, and ambulance was on the way and many people were around. I did not see any twisted limbs and told her that; told her about the excellent hospital nearby...I said a prayer out loud.
She could not talk, but I think I kept her from going to shock because she became more focused and present as I spoke to her. It was amazing that no one approached her, but then again, there was nothing they could do for her except verbally comfort her until the ambulance arrived. Many people were caring about her. Fortunately for me, there was no blood...or there would have been two on the highway waiting for the ambulance!
Oh, my, that so didn't happen when I broke my pelvis. I jumped around hysterically until someone put me in his car and drove me to the hospital. Then I didn't jump around any more; I could barely move.