My dad is 88 years old and recently started dialysis. I notice he starts to hallucinate after dialysis and this has lasted a couple of days. He was admitted to hospital for a blood infection the last time he started hallucinating, but now, he has started back up and the hospital says he does not have a blood infection. He see things that are not there and hears things. When he is not hallucinating he is on point , no dementia. He can t seem to function when he hallucinates, can t eat properly, misses his mouth, and is out of it . Can dialysis cause this?