@formydad Would your dad be comfortable having you along with him on appointments? Often it is overwhelming while you're in the doctor's office. You forget to ask a question, or terms are not clear and you don't know how to ask them to go slow and be clear because you're trying to listen to the next thing the doctor is saying. Of course, this is if you live in the same area as your dad. If not, perhaps there is someone else who could accompany him. His doctors need to be aware that he doesn't grasp everything going on and everybody needs answers. It's hard to consent to procedures if you don't fully understand. I hope that you will come back, and check in to let us know what's happening. As for functioning with one kidney, yes, that definitely can be done. In the kidney community those waiting for transplant often will say "do you have a spare?" because we have two kidneys and you can function well on just one.
Ginger