Hi goals, I'm Shay.
I'm sorry to hear about the accident and your brother. I had my left kidney removed a little over 2 years ago because of too many surgeries (over 70+ on both kidneys, and because of too many kidney stones over 400+). This all started when I was 9, now 37. My only kidney is dyfunctional and starting to fail, which we knew would be a risk when they removed my left one. However, it's failing because of my screwy body chemistry and all the problems I've had with my kidneys, now kidney.
People can live many, many years
with just one kidney, if their overall health is good and have never had any kidney problems. Some people are born with only 1 kidney and never find out until years later, for some other reason, like an X-Ray or CT.
I'm sure your brother will be just fine, ok?? I'm sure his doc will keep monitoring his kidney function via bloodwork and urinalysis. If, by chance, his other kidney starts to fail, he can always go on dialysis and be listed for transplant. If you and your brother, or either Parent is his blood type, and tissue match, they could also donate a kidney to him, if warranted. Blood relation donors are always the best bet when looking for a kidney to be donated.
I do not qualify for transplant, due to my body's chemistry, and I will not
"live" on dialysis. My docs told me it would be basically "wasting" a kidney. So, when my kidney finally gives out, then I'm done. That's fine with me because I also live in horrible, excruiciating daily pain that require the most potent narcotics that exist.
Anyway, like I said, I'm sure your brother will be just fine and live a very long and happy life. If you have any concerns, please talk to his doc. I hope this helps you and does not scare you. Remember, I'm a very "rare case". Don't worry....you're just going to stress yourself out over something that will probably never happen. Take care and bye for now.
P.S. If your brother wants to, he can always go on the renal diet. Just do a search. Basically, it consists of very little protein (protein is very hard to filter with just 1 kidney) and low/no salt. Also, watch his blood pressure. If he starts to have increasing b/p's, he needs medication, stat!!! That's the one thing that can really damage the kidney and make it fail. He needs to be carefully monitored for b/p. My advice would be to set up an appointment with a Nephrologist with your brother and talk about your concerns.