My cat is at the emergency vet because his bloodwork came back with

Extremely high liver count. The vet wanted me to rush him. They did an ultrasound and he seems to have a liver infection which they are going to treat with fluids for dehydration and antibiotics. My question is has anyone had experience with this? How long will he be there

I haven't dealt with this but I hope your kitty gets better soon.  My kitty had high liver enzymes from fatty liver which is completely different from an infection.  I actually think this is the first time I have heard of this.  Inflammation is actually fairly common but I believe that this is the first time I have heard of an infection in the liver.  I know when my kitty had fatty liver he was on an antibiotic because the inflammation made an infection more likely.

How's he doing?

I haven't dealt with that, sorry. But is he doing okay? My cat had to go to the vet for a really bad Urinary Infection, and I understand what it feels like... I hope hes okay!