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Grapes of Wrath Print E-mail

grapes.jpgMmmm... I love grapes, don't you? So sweet and yummy and my Labrador Ben loved them too. I'd occasionally give-in to his irresistable "poor starving refugee" expression and throw him a grape or two. At least I USED to, until I read this article!

This information was sent to us by a member and we felt it important enough to publish. Please read and inform anyone you know that owns a dog.

Source:  Laurinda Morris, DVM, Danville Veterinary Clinic, Danville, Ohio

This week I had the first case in history of raisin toxicity ever seen at MedVet. My patient was a 56 pound, 5 yr old male neutered lab mix who ate half a canister of raisins ometime between 7:30 AM and 4:30 PM on Tuesday. He started with vomiting, diarrhea and shaking about 1 AM on Wednesday but the owner didn't call my emergency service until 7 AM.

I had heard somewhere about raisins AND grapes causing acute renal failure but hadn't seen any formal paper on the subject. We had her bring the dog in immediately. In the meantime, I called the ER service at MedVet, and the doctor there was like me—had heard something about it, but.... Anyway, we contacted the ASPCA National Animal Poison Control Center and they said to give I V fluids at 1 1/2 times maintenance and watch the kidney values for the next 48-72 hours.

The dog's BUN (blood urea nitrogen level) was already at 32 (normal less than 27) and creatinine over 5 (1.9 is the high end of normal). Both are monitors of kidney function in the bloodstream. We placed an I V catheter and started the fluids. Rechecked the renal values at 5 PM and the BUN was over 40 and creatinine over 7 with no urine production after a liter of fluids.

At the point I felt the dog was in acute renal failure and sent him on to MedVet for a urinary catheter to monitor urine output overnight as well as overnight care. He started vomiting again overnight at MedVet and his renal values have continued to increase daily. He produced urine when given lasix as a diuretic. He was on 3 different anti-vomiting medications and they still couldn't control his vomiting.

Today his urine output decreased again, his BUN was over 120, his creatinine was at 10, his phosphorus was very elevated and his blood pressure, which had been staying around 150, skyrocketed to 220. He continued to vomit and the owners elected to euthanize.

This is a very sad case - great dog, great owners who had no idea raisins could be a toxin. Please alert everyone you know who has a dog of this very serious risk. Poison control said as few as 7 raisins or grapes could be toxic. Many people I know give their dogs grapes or raisins as treats. Any exposure should give rise to immediate concern. Feel free to contact me if you have any questions.

Comments
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Evelyn Lee - Mrs   | | 13-04-2008 17:40:09
I had heard about this and even my sister in uk was feeding the dogs just 1 grape, letting the dog roll over it to 'kill'. I would think that with those actions even the dog realises fresh grapes are not good for it!!
Moira   | | 14-05-2008 07:54:35
Wow! I've often given my dog a few organic grapes over the last few years. She's had more than 7 grapes at a time, but has never shown any signs of being unwell. Vet says she's one of the healthiest dogs in his practice. She might abstain now though.
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Copyright (C) 2007 Alain Georgette / Copyright (C) 2006 Frantisek Hliva. All rights reserved.


 
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