Piper
Sadly, I have had a lot of experience with dementia. Two grans when I was a teenager, two aunties now, and now my 91 year old mother is rapidly declining into dementia (although we knew she was very 'muddled' for the last 10 years). My Mam has had to be admitted to a care home recently. She got a kidney infection and had to go to hospital but was discharged to a care home for 3 weeks. She then went back home on the Monday and went 'walk-about' on the Tuesday, fell and broke two vertebrae and knocked at a stranger's door to ask for a lift home! (Thank goodness that the stranger was a good guy!) So Mam is back in the care-home until Christmas at least.
My Mam would say that she doesn't want to be in a care home but, when I asked her why she left her own house on the Tuesday night, she said, "I like the noise of having other people bustling about and my own house was too quiet." My Mam doesn't actually remember when she started the walk-about, but she recalls the panic of being on her own and was so glad to find herself back in the care-home.
If your Nan is calm and non-aggressive with your visits (that is, you don't upset her) then your visits should continue. They bring comfort to you and your Nan may have a 'remembering moment' which will be so precious.
Never expect your Nan to remember you or anything from your past life together. Take her flowers that she can smell (and pull apart as she puts them to her nose), take a cuddly toy and say it has YOUR name. Take some playing cards - but put them in front of her and see if she can remember 'snap', 'gin rummy', 'new market' or 'whist'. If the cards don't engage her - don't worry. Does she remember dominoes?
Talk about whether she is feeling warm enough. Sit quietly next to her and don't feel you have to speak. Hold her hand (they remember physical contact) or take her for a walk to the gardens.
If she has her own private room in the care home, put some music on and listen together. You may find that she will sing/hum as she remembers something from the past.
Long term memory is the last to go - so there may be 'flashes' when she recognises you (or thinks you are her daughter - your Mum).
I hope you and your Nan have many more happy times together.
Take care, SW 