I have just returned from my second trip.I suggest you allow tests to br redone due to the state of the art equipment at the Mayo Clinic, best in the world.
Check with your assigned team about using an Uber after a procedure with anesthesia. There are 3 levels of Uber and VERY expensive so be careful.
I am having surgery at the end of the month, I hope you are seeing Dr.Stauffer, he's the best and his nurse is so personable and caring.I hope this helps.I am blessed to have 2 VERY close friends in the area that accompanied me.
Good luck