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Hello. Thanks for writing in. My name is***** and I would be happy to help you. I do have a couple more questions, though, to see if I can better assess your situation.
When you say that his Urine test is 41, what value are you referring to?
Does his abdomen seem enlarged or swollen?
Thanks for the information. I do need to make sure we are on the same page, though. Are you referring to his BUN on his blood work when you say that the "urine test is 41?"
I wasn't sure if you were going to respond back, so I at least wanted to give you something based on what you have posted so far. FVR is possible, but it seems like the symptoms are more severe than what we usually see. I would be more concerned about calicivirus. It may help for your vet to get swabs for testing to see if there is an infectious agent. I would also test him for feline leukemia and feline immunodeficiency virus (FIV). Both of these can cause similar signs, especially with the mouth sores. Lastly, I would also be very concerned about potential feline infectious peritonitis (FIP). He is still of that age where see may see affected cats. The problem is that FIP can be difficult to diagnose. There is not a good reliable test for it. If it is FIP, I would be more concerned about the "dry" form (granulomatous lesions on the organs) as opposed to the "wet form" (abdomen fill up with fluid). Wet is more common, but dry is much harder to diagnose without biopsies. It would probably be a good idea to get some antibiotics started because there can be a secondary bacterial infection, but I would pursue some testing, including full blood work, to see what else needs to be done. Please let me know if you have any other questions or concerns. Hope this helps.
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