Rags has been at the animal hospital since Wednesday morning. She can't pee without a catheter and the vet says she has never seen a blocked female. Three years ago Rags had a bout with cystitis and it was treated and cleared up. She's been fine, or seemed fine, all those years. She recently started having problems and got blocked. The vet has tried antibiotics and anti-inflammatories, but the swelling hasn't gone down. Today the vet did an xray and the urethra is enlarged. We're doing the bladder tumor antigen test to see if that enlargment is cancer or something else. Even if it is something else (inflammation or damage from inflammation) if the vet can't figure out what medicine to use to get rid of that swelling so she can pee on her own, it doesn't look good. Has anyone here had the bladder tumor antigen test done before?