From what I just read about it the ABR tests are done on adults if there's hearing loss in only one ear, or more severe loss in one ear than the other. I guess this happens sometimes one something's up with the nerve? They probably want to do the test because if there IS something wrong with your auditory nerve a CI won't work. At least I wouldn't think so since a CI bypasses your ear's hearing mechanisms and puts the sound via electrodes straight to the nerve.
My question is....do they already know what caused your hearing loss in the first place? Because if they do, and it doesn't involve the auditory nerve, testing for it seems silly.
People take different roads seeking fulfillment and happiness. Just because they're not on your road doesn't mean they've gotten lost.~Dalai Lama