@druchefavour There is a transplant protocol that can vary a bit between transplant centers. But I do know that there is a definite battery of tests a potential donor must go through, including medical, and psychological.

Has you neighbor shared with you where they are listed for transplant? My suggestion is to contact the transplant center your neighbor is listed at, and find out their criteria. And, what I really want to say, is "bless you" for offering to donate like this! Oh, that more people would take this into their hearts and think about being a live donor!

I will be interested to hear what you find out.
Ginger