Q. My dog ate about 8 grapes (he is a 47 pound shetland sheepdog) is that ok?
A. The amount of grapes that can hurt a dog can vary by the dogâ€™s weight. Toxic doses begin at about 0.18 ounces of grapes per pound of dog weight however, they can affect dogs differently. Any amount of grapes should be considered toxic. Seek veterinary attention immediately. If the ingestion was within two hours, vomiting is usually induced and activated charcoal administered. Intravenous fluids may be given for 48 hours. Blood chemistry panels are checked for 72 hours. Monitor for vomiting, diarrhea, lethargy, loss of appetite, difficulty breathing, tremors or hyperactivity.