Went for blood work this morning to check on liver. Now I just received a call from my neuro's office that I have to go back tomorrow for additional bloodwork to check for antibodies. I guess it takes 3 weeks to get the results. The nurse also said that they will be slowing down the tysabri infusion. She did not seem to be sure based on the doctor's notes if I will receive a benadryl iv each time or continue with the oral med.