Most of my patients asked me to preform OMT on them- some of which I did do OMM on and some patients I did not. Before I preformed OMT, I told the patient that I thought OMT would be beneficial for their condition and I asked them if they had ever received OMM treatments. If they said no, I explained why we do OMT. I never really asked the patients if they wanted OMT though. I never heard any professors or doctors say that we need to ask patients before we do OMM. I am sure you will do fine on the PE. Just try not to worry about the exam as the results will not be back from a couple months anyway.