Take someone with you if you can - I was the note taker and wrote everything down. Your notetaker has to go into "auto mode" and just write EVERYTHING down whether you understand it or not. When my husband came come he kept asking questions - he heard differently than I did - the notes were the deciding factor.
Ask about "stranded seeds". Six years ago there were a relatively new procedure, now they're pretty common place - less chance of "migration".
Ask about any dietary or physical restrictions. Alot of it will be trial and error but you want to make your recover as smooth as possible.
If you are going to be around small children, ask about the lead underware - yes it exists and you can usually borrow a pair from the hospital. We borrowed a pair as my husband was around wee ones and we just felt more comfortable.
If you wife is at all concerned about how it might effect her, ask that question too - although you're going through the procedure, it will ultimately effect your relationship with her.
Hope this helps, let me know if you have any other questions.