Hello
I just wanted to say, I have been in a simillar situation as you so completely understand how you feel and how awful it is for your dad and your family.
I echo everything that Pippa has said in terms of how the strange environment/ UTI/ hospital delirium can have such an impact on someone who has Parkinsons. If you type in ‘hospital delirium’ into this forum, you will see lots of similar posts. Here is a link to something I posted myself when my mum was in hospital after a fall. My mum has been in hospital several times now as a result of a fall and each time, my mum has been in such a bad way (mentally and physically), that we were at our wits end.
I have also been concerned about getting the medication on time/ mum being fed properly etc. I just kept asking to speak to the ward manager and voiced my concerns. It was simple things like telling them because my mum had a broken arm, she needed to have a sticker above her bed to say ‘help with feeding’, otherwise- she wouldn’t be able to feed herself when the hospital food came around.
All I can say is, even though we felt things would NEVER improve for my mum, once she was out of hospital and being cared for by my dad and an additional carer that I found online to help support my dad a few hours a week, there has been a return to some sort of normality so please hang in there, keep pushing for what you feel is right with the hospital staff. Hopefully, things will improve for your Dad.