We have had quite the week with Gozer. Sunday morning, Ian noticed that her pee looked orange, like it had blood in it. Her pee was a normal colour in the afternoon but we decided to take her to our vet on Monday morning.
We took a pee sample in to the vet's and they did an analysis which showed that it had magnesium phosphate (struvite) crystals, a pH of 7.0, bacteria, and red and white blood in it, with no sign of bile salts. They did an xray to see if she had stones but it was inconclusive so we set up an ultrasound for the next day. The vet gave Gozer an antibiotic shot because she has such a hard time with antibiotics.
The ultrasound showed no stones but a LOT of sediment from the crystals and signs of anaerobic bacteria. Fortunately, the antibiotic shot should treat that kind of bacteria as well as aerobic bacteria.
The main treatment is to get the pH in her urine down, which will make the crystals re-dissolve in her urine, and that's done by changing her food to lower the amount of protein she's getting. The vet prescribed Royal Canin Urinary SO but it has corn and chicken in it, which we think she's allergic to, and fish oil, which Ian's mom is allergic to. I contacted Gozer's dermatologist and she said to try to keep her on this food for 2-4 weeks to clear up this problem and if Gozer shows allergy signs (lots of scratching and licking and hotspots) then I need to make an appointment to take her in so that we can figure out her food.
I figure that if we do take Gozer to Ian's parent's place while she's on this food, we can just feed her squash and rice instead of the food while we're there. That way, we don't have to worry about Ian's mom's allergy - but this isn't a great long-term solution. I suspect Gozer may end up with allergies to the food before long anyways.
Unfortunately, I don't think there are many (if any) commercially available low-protein foods that meet the non-allergy requirements out there so I suspect that we will end up having to cook her food at home.
For now, Gozer is doing ok. She has varying amounts of blood in her pee from passing the crystals, which are sharp and cut her: sometimes there's none, sometimes it's all blood, and I know that when there's blood it hurts her. However, she's as happy and cuddly as usual and she's not straining to pee or anything. The ultrasound day was tough as they didn't take her out to pee afterwards (she went in not having peed in the morning) and she peed in the cage she was in :( She's bounced back since then.
Poor girl. I hope she's going to be ok.