Let me give some examples. I had a new roof put on a week ago. When I got home, I asked him, "Did the roofers talk to you?" "No." "They didn't come to the door?" "No." I then spoke to the roofer who said he had spoken to my father. When I told him, he said he talked to them about driving on the lawn and not the roof even though I hadn't specified. Plus, the roofer did talk to him about the bad piece on the roof. A few days later though, I asked him why there were so many nails under the tiling in the foyer in the basement. He told me that they put in two layers of plywood (he actually built most of the house). I asked if they did that everywhere, and he said yes. He also was able to immediately find the pool extension tube that we haven't used in over a year when I needed it to try to rescue a hawk. He spends all day in his recliner, mostly asleep. He doesn't care about anything. He even leaves on lights. He used to be anal about turning them all off. He ignores most questions and answers others as simply as possible. Sometimes, I wonder how he can be alive but then he can answer specific questions about activities from 50 years ago. Yet, when I got an invitation over a year ago and didn't know who it was, he didn't either. There was an e-mail on the card, and person was his first cousin. When I told him about her, he still didn't know who she was. My father had dementia testing two years ago, and they said mild to moderate impairment at that time but would not diagnose since he had just gotten through a period of hyper-mania and psychosis (he's bipolar). Since he refuses to see a doctor or have any tests because "Nothin's wrong with me," can I feel pretty confident that yep, he has dementia?
Selective memory is no unusual. My mother remembers certain things and even obsesses on some of them. She remembers the good things from her childhood and marriage. She forgets the bad. I've often wish she would forget the bad things that her teenage children did. I hear about them a lot like they were yesterday.
I imagine that different events get stored in different areas of the brain. Those that are stored in undamaged sections can be remembered. Sometimes they get a little doctored over time, like a fish tale, but they are still in there.
How is his mental illness being treated if he refuses to see the doctor? That would concern me.
Can you avoid these people and this facility and search for a more consistent one? It's a tough thing to do, I know. I think if it were my Dad I would make app'ts. with one psychiatrist at a time to search for the right one who could answer my questions satisfactorily. Who would treat my Dad with a logical plan of action regarding both possibilities of Dad's cooperation and non-cooperation. I'd also ask around for referrals from other people and other Drs. and search the net for patient reviews. Best wishes to you and your father.
You need to speak with a lawyer who specializes in this area of medicine with the diagnoses your Dad has. He is bipolar, seems to have dementia, and maybe some other mental illness? This type of lawyer can help you navigate the difficulties of a Dad who is sometimes normal (right?) and sometimes not.
I wonder how other family members who have POA over medical care issues handle decisions for bipolar relatives during periods where the bipolar person hasn't taken their meds as directed and their behavior is a serious problem. This has to have happened many times before now. Maybe you could put this question to the whole community? Or you could ask it of your father's attorney or a different attorney?
If he lets you do what is most critically needed with just a POA in hand, despite denials that anything is wrong, that's great, maybe you will never need a guardianship. But if you have to get it, you can and should be able to. He might not have to appear in court - he does get a notice of the proceedings and if he can interpret that he may contest it, but he may not even understand it. Maybe on one of his more lucid days he can sign a HIPAA release (or better still, that plus a medical POA) at least that would hopefully make his nurse realize she can talk to you.
It is hard to take over, to become more of a parent than a daughter, but our parents who are losing their memory, reasoning and cognitive skills need us to.
It sounds like Dad is very lucky to have you looking after him!
I would say that this man is no longer able to deal with discussions with service people, no longer able to make his own medical appointments, no longer able to conduct business over the phone. Actually, he is probably beyond the point where he can safely be left alone at home for long periods.
This is sad, and a huge challenge for his caregivers! I send you good wishes and lots of hugs.