Thanks for the info. My dog, Doc, had every test they had to offer, urinalysis, blood work, ultrasound, xray, catheter under anesthesia. Nothing showed up. He has done better with the Royal Canine SO, with these episodes less often. I would not hesitate to have him go through all the testing again if our vet thinks it would find anything this time. He is okay now, sleeping it off, like with the other episodes. Likely there is a stone or crystal that cannot be found through the testing, and it may eventually come to surgery I suppose.
On a kind of separate note, we have the most excellent vet here, as with medical care for humans, very affordable, modern with caring providers. We just have fewer or more expensive access to certain things that have to be imported, like special diet food. I cannot order any medication whether human or animal, or supplement . Mexico immigration as well as most countries will not allow.
