Cat not feeding

[Lambside]

My partner's cat (10) stopped eating, drinking or pooing/peeing about a week ago. She's just spent three days at the vets being rehydrated and having tests sent home yesterday in the hopes that she would be happier to eat there. She hasn't.
The early tests have shown high white blood cells and crystals and blood in urine. The vet said the high white cell count most likely an infection. She is on a long term antibiotic. Also had pain killers.
She won't eat or drink and we are despairing of her surviving this. Anyone had similar and what happened?

Still not taking anything and we've tried soft food, pate and treats.
Got two syringes of water down her just now.

Have you tried poached chicken livers or rotisserie chicken off the hot counter?.

It needs to be something warm so she can smell it so you can warm it in the microwave.

If you have dried catnip you can sprinkle it over her food too.

Try anything, anything at all as the priority is that she eats. After that you can move on to her eating what the vet wants her to eat.

Old lady cat completely gave up eating a few years ago when she had a UTI and we thought she was dying. She is now alive and well and very much not dying.

I tried every tip on line on getting your cat to eat and things that worked were:

Tuna in water. Or just the tuna water.
Food being a bit warm so it was smellier.
Raising the food bowl
Food bowl away from any other cats and where she liked to sit
Actually food bowl anywhere and everywhere - she was better with snacks when she was just waking up
Sitting with her and encouraging her to eat, pretending to eat it yourself, smearing bits on her mouth - this really worked, she still eats a lot more with company
Change the food - we discovered Sheba Cat Soup at this point and Old Lady Cat loves this food more than anything in the world
Treats - Thrive treats were a great success/Cosma are cheaper

Once she was eating then we could get her to eat what the vet wanted her to eat, and she turned out to be hungry - although not necessarily for the right things

We still have the elevated bowl, treats, Cat Soup but not so much of the pretending to eat her food

This site was excellent with ideas - I think I did nearly all of them

felinecrf.org/persuading_cat_to_eat.htm

thanks
The cat didn't eat for another two days and it was the lack of drinking that had us freaking out so second evening I syringed water into her mouth.
Next day she ate! Treats-Dreamies specifically. Then she had a go at bits of her normal dry food. She still didn't drink so we syringed it again and she's now drinking and eating normally.
Cats eh.

All well that ends well.