Your veterinarian will begin by performing a physical examination on your dog. This will allow her to assess his symptoms at present and note any abnormalities of his vitals. If your dog is drooling excessively or displaying other symptoms of oral pain, the veterinarian will take special care when examining his mouth to note any abnormalities. If your dog vomits while at the clinic, the veterinarian will examine the contents for any evidence as to what he ingested. If your dog is experiencing diarrhea, a fecal sample may be taken and tests performed to rule out internal parasites or bacterial overgrowth.
Blood work will be performed to give the veterinarian a broad look as to how the internal organs are functioning. A complete blood count (CBC) and chemistry panel will provide the veterinarian with needed information for proper assessment. A packed cell volume (PCV) may also be performed to determine hydration status. If your veterinarian feels it is necessary, she may also perform a urinalysis for further evaluation of kidney function.
If your dog is experiencing some type of cardiac related symptom, she may perform an ECG or to get a current reading of your dog’s pulse and to ensure each part of the heart is functioning properly. If you believe or witnessed your dog eating this plant, take a piece of it with you to the veterinarians. This will allow for proper identification of the plant your dog consumed and the toxin it contains.
If your dog is showing severe signs of toxicity, consider if the tomato was treated with weed killer or fertiliser, or if perhaps the dog has ingested something else which is more toxic.