We are already at the 'as required' stage 
I can guarantee it will go something like this:
W ( cheerily) Hello Mum! How lovely to see you! You're looking well.
M: Oh. Am I I? (Pause) I'm not feeling well. Not feeling well. At. All. No. NOT Well.
W: Oh dear. I'm sorry to hear that. I was told you were much better now! You look very well!
M: ( Disappointed ) Oh. ( then something occurs to her and she brightens) I haven't had my vaccine yet, you know! No vaccine !
W: You did Mum, but it was a while ago now. How's your friend Gladys?
M: (Rolls eyes, shrugs) Who? I can't remem... Oh, Gladys? Dead. She went and died. Dead. Only one in here I could speak to, that Gladys... Just my luck. I don't like it in here much. Didn't like her much either to be honest. She was an odd woman. Peculiar. But she was the only one I could talk to.
W: ( desperately trying to change the subject) Ahh, that's a shame. The food looks really good though. What did you have for dinner yesterday?
M: Can't remember.
W: Oh ok what about lunch just now? What did you have?
M: Can't remember.
At this point, in a very similar exchange in RL, I glance out of the window behind her and to my horror, notice an unmarked black van reversing up to the entrance.
^A couple of burly men in black overcoats disappear into the care home foyer, reappearing shortly, wheeling a body bag on a gurney. They load it reverently into the van and drive slowly away.
^
W: ( frantic by now) Ermm oh look Mum, here's a picture of my cat Maisie, remember? ^
^
I hand- her my IPad. She touches the screen and the picture instantly minimises.
M: Can't see anything. Useless, those machines are. Useless. (Hands back iPad) I've got something wrong with my eyes, you know. I need...
W: ...Well, anyway, guess what Maisie did? She brought a mouse in last night and hid it in my slipper!
M : ( momentary flicker of interest, then) : You know, I'll never get over Dinky dying, never. Never get over that. I was never the same after Dinky died. Never.
(W, beginning to feel a familiar sense of defeat at this point, falls silent.)
M: ( perking up) Anyway, Words, there's something I want you to do for me. I need some more socks. And knickers. And vests. And my watch needs a new battery. And I need some more cash to have my hair and nails done. ( glances down at hands, extends fingers) Look at that! Dreadful state my nails are in. Dreadful.
Then she looks very pointedly at the clock on the wall, the one with the helpfully large numerals. She clears her throat, shifts in her seat and drains her cup of tea. ^
^
In comes the care assistant, beaming. "Time's up! I bet you^^ two had a lovely chat, didn't you! "
Words' duty is done. For now.