this past week I had an 17yo healthy male who had a football scholarship to the local college. I admited him following commands. when we took him down to CT he wouldnt sit still so we gave him .5 Ativan. He was not following when we returned. MD told me to let him know if he doesnt wake up. 1.5 hrs later, clear cut and dry posturing. the rest of the night stat CT, stat MRI, while we were in MRI resident called in the stat OR team to do emergency angio. all I can think is if I hadnt given the Ativan I would have noticed the change 2hrs prior.