Get copies of every test. Get the names and phone numbers of staff that do your education, consent, and evaluation. Agree about bringing your own patient advocate. Take notes, ask questions. I know of donors who were told this person could not be in the room with you, the prospective donor. This is not true. You decide, not the transplant team. Be sure to communicate with your own health care providers since if you donate, they will have to take care of you afterwards. Let them also review all of your test results. I am an old school nurse--family is not a visitor. I never stuck to visting hours with my families. I was never treated like a visitor either when my sister was hospitalized. Maybe because her medical history was so complicated and intimidating to most and she needed me.
You will need your family and friends to support you. Be sure you let them walk this path with you.
Agree about being your own advocate. Do not go in with blinders on. Research the transplant program and the surgeons. Take time to read about the surgery, its risks, what your care should look like, and be sure to ask who is your contact person should you need something after discharge.