Last night at the dog park, my australian shepherd mix had a seizure for the first time. I took her to the emergency vet who discovered she had slightly low potassium and slightly high CREA numbers. The vet did not diagnose cause of the seizure, but seemed reluctant to say it was heat stroke: 1. because the seizure came on without any warning signs (she had just caught a ball when it happened) and 2. it was late at night, the temperature was not as hot as it has been (in the 80's), I had hosed her down twice during the time at the dog park and she had jumped in the lake a couple of times.
The vet did think that maybe the low potassium was a cause and put her on potassium supplements, though she didn't really tell me why she Bella might have had low potassium. I looked up low potassium in dogs - as well as an elevated CREA level - and discovered that it is a sign of some pretty bad things: mainly kidney disease. Now about 3 months ago I took Bella into the vet for urinary issues (she was liking herself and leaking small drops of urine). The vet diagnosed her with incotinence as her urine sample was clean, but could this all be a sign of a kidney disorder? I go into my vet in a week to recheck her potassium levels, but should I have her urine rechecked?
being an Aussie mix, my first concern would actually be MDR1. go to www.busteralert.org for more info on that. Basicly it is an ivermectin allergy, and can cause seizure. I do not know if it would have anything to do with potassium.
If it were my dog, I would acutally ask about testing the kidneys to find out. Tell the vet what you saw online, and just wanted to check. Good luck