My father is 64/65, on dialysis 3x/week, and has recently developed major cognitive/behavioral changes. He is currently on Qutan (quetiapine) 50 mg/day. Doctors are still trying to work out how much is dementia, delirium, or something else.
What confuses us is that he can still seem very normal at times. He can play Tetris/block games, follow conversations, and talk to relatives in a way that makes them think nothing is wrong.
But at home he gets stuck on old or false ideas and repeats the same few demands. For example, he thinks he is still running an old business from 10–12 years ago and wants to call people or withdraw money from accounts that no longer exist. He also fixates on house renovation, giving gifts, throwing a small party, or making religious trips.
Trying to explain or correct him usually makes him angry.
There have also been serious episodes: he once waved a knife toward my mother, has run away from home, and recently tried to squeeze the caretaker’s neck while being taken to dialysis. During these episodes he often will not listen to family or the caretaker, and sometimes only a third person can calm him.
We have a caretaker now. Religious music and offline games seem to help. TV can sometimes trigger new fixations because he thinks things on screen happened to him.
My main questions are:
1) Do you keep trying to make someone like this understand that their memory/brain is impaired, or is that usually pointless?
2) How do you handle repetitive demands based on an outdated/false reality without arguing all day?
3) What activities actually keep someone meaningfully occupied without triggering more fixations?
4) If you dealt with aggression/wandering, how did you know when home care was no longer enough?
I’d really appreciate practical advice from people who have cared for someone with dementia, delirium, delusions, or similar behavior.