Hi Maggie,
Welcome to OCF. You have found the best site out there. Everyone here is welcoming and helpful. The beginning is the scariest part. I agree with Charm....you, or someone else needs to go to his appointments with him. You always need more than the patient there. We get nervous and don't hear everything and don't remember what questions to ask. (At least I never do) You are already being an awesome caregiver by taking the time to read through the site and make a list of questions.
Good luck to you and your dad and I look forward to hearing how your dad is doing.