I think the raisins had a big part in causing Acute Renal Failure, if that is what caused this. Two other problems I see could have been his age and the previous toxic episode with the frog.
Older dogs frequently develope chronic kidney failure, he could possibly have been in the early stages. Symptoms are not seen until this disease becomes fairly advanced.... dogs can go for years before symptoms of kidney failure are evident.
The encounter with the toxic frog more than likely may have caused permanent damage to his kidneys, damage that would never be noticed, until a situation like this one arises, where the dog ingests another toxin.
Add to these situations a small 7 pound dog, who ate a substantial quantity of large raisins in relation to his body weight, raisins being concentrated and therefore even more toxic than grapes, and the possibility of pesticidal, bacterial or fungal contamination of the raisins...
I feel that if treatment had been initiated sooner, it would have prolonged his suffering.
But you say he was urinating throughout the day. Two symptoms of Acute Renal Failure are vomiting and decreased urination, so it may have been something else that caused this.
He was vomiting, did he have any bowel movements throughout the day? I think you said he was drinking, not eating, and just urinating, and a bout of liquid diarrhea towards the end.
These can be symptoms of a blockage or bloat. The skins on the raisins are tough enough to have caused this. Panting is an indication of pain, more than likely caused by gas formation. The repeated episodes of vomiting could have caused a bloat and which could only be surgically corrected. Even then there is no guarantee, and with his history with toxins, being currently toxic from the raisins, the anesthesia to do the surgery alone could have done him in.
Just speculating here... again I am so sorry for your loss. |