Kidney Transplant

Anyone experience it or have family that have? My mom just casually threw it at me that she’s going to need one during dinner but didn’t do a follow up. I want to keep discussing it but she’s always been the type to only speak up if it’s really a concern. She’s always been “secretive”. I don’t want to push her right now. I don’t know…I’m not sure if I could even be a donor since I’m AB. I’m not sure her blood type…I’ll try to ask her etc. feeling so confused and sad.