No urine in litter box within 28 hours

Greetings, I'd like to seek some expert opinions on this before the vet visit (much needed). My cat's name is Jujubee, a female domestic short-hair now at age 10 and weighing at maybe a little over 11 pounds (last I checked). Recently, she urinated outside her litter box for the first time since I got her which was 1 year, 7 months ago. I poured some litter health detector in her litter box about 28 hours ago from this post to see if I could identify any health issues by the color shown. As of now, I haven't seen anything because she hasn't urinated since I poured it in. She has stooled however. I've heard that urinating at least 3 - 5 times a day is normal.

Any thoughts on what this could be as a preparation for what to expect at the vet?

Thanks!

If you are sure she has not urinated anywhere for 28 hours, I would get her to a vet pretty quickly as she may have a blockage. This is more common in male cats but does occur in females too. The vet will be able to tell at once if her bladder is swollen and will try to express it. If he can't he may have to insert a catheter after sedating the cat. What he finds then will determine treatment. They can flush the bladder out and do a test for crystals or stones. She may be put on a special diet to help dissolve any gravel or crystals. But it could be other things too - do get her to a vet.

I second what Jennyranson said.  If there has been no urination anywhere in 28 hours then you have reached the point or are quickly reaching the point of a medical emergency for a likely blockage.  Urinating outside the box prior can be a symptom as blockages cause pain and cats associate the pain with the litter box and look for some place to go that doesn't hurt.

There is a short window of opportunity between complete blockage and a ruptured bladder with a fatal result.  She needs to be seen immediately on an emergency basis by a vet today if there has been no urination in 24+ hours.

I hope by now you have gotten your kitty to the vet, not urinating can be quite serious.

Thanks for your replies! I checked the box a couple hours ago and noticed some urine in there. I'll keep monitoring because 28 hours without urine as you all have mentioned is a serious deal. I'm also thinking that it may be due to the lack of water consumption. It may be that she isn't consuming enough water but I feel it's still a bladder issue.

I'm glad she urinated some. But another symptom of a urinary tract infection (UTI) is peeing little amounts; so if the volume is less than normal, I personally would take her to the vets today (especially if the vets where you live are closed Saturdays).

I don't wish to frighten you, but I also would like to come over how important it is to get your cat to the vet. It really really does sound like she has a UTI which, if not treated, can be lethal quite quickly. It also makes much more sense to take your cat to the vet and not take any risks - doing it early will actually cost a lot less too.   My cat hid his UTI until he was very unwell and I had no clue - he's a cat than can go outside so I had no clue with toilet behaviour. You're in the good position to see that she's barely urinating and is urinating outside the box and I wish I knew before it got serious - he ended up on a drip in the vets for 48 hours with a dangerously high temperature.  It cost a lot more than had I had an early clue like you have and of course, I'd not have had my cat suffer so much. Please don't ignore it, please take your cat to the vet.

If she is not drinking as much it is a DEFINITE EMERGENCY...imo

Better to catch it before you are in full blockage and if its a UTI like fleabag's mom said, then the sooner you start antibiotics the better!

After the much needed vet visit, there seems to be no UTI or related infection. She apparently urinated properly when placed within a cage at the vet. So after ruling out any medical issues, the cause is probably either the litter, the litter box or its placement.