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Question:

12 years old dog with GPT (ALT) high

I'm really worried about my fur baby and could use some advice. My sweet 12-year-old dog, Max, recently had some bloodwork done, and the vet mentioned that his GPT (ALT) levels are high. I'm not entirely sure what this means, but I do know it's related to his liver function, and it's freaking me out. Max has been my buddy since he was a pup, and he's usually full of energy, but lately, he's been a bit lethargic and not as interested in his food. The vet suggested it might be a sign of liver issues, and I'm just devastated thinking about it. Has anyone dealt with something like this before? What options did you consider or what treatments worked for your pet? Any insights or experiences would be hugely appreciated. Thanks so much in advance for your help!

Answer:

Hi there! I'm glad you reached out about your older pup. When we see an elevated GPT (ALT) level, it usually indicates that there's some stress or damage happening in the liver. This is important since the liver plays a crucial role in filtering toxins from the blood and aiding digestion.



Some possible causes for a high ALT in a senior dog include liver disease, certain medications, infections, or even heart problems. In older dogs, conditions like liver dysfunction or tumors can also be more common.



At home, ensure your dog is comfortable and has access to fresh water at all times, as staying hydrated is important for liver health. Monitoring their diet is key, so offering a well-balanced meal that's easy on the liver—like high-quality, easily digestible proteins—can be helpful. Avoiding fatty or processed foods is also wise.



Keep an eye out for signs that might signal a more serious condition, such as vomiting, diarrhea, loss of appetite, a noticeable decrease in energy, or jaundice (yellowing of the skin or eyes). If you notice any of these, it's important to seek professional care promptly.



I would encourage you to schedule a video consult with one of our Dial A Vet specialists. They can help assess your dog's condition more thoroughly and guide you on the next steps to ensure your furry friend's health and happiness.

Answered by

Louise - Senior Veterinary Nurse, Dial A Vet

June 22, 2025

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The "Ask a Vet" forum on Dial A Vet offers general information and helpful tips on pet health, but it's not a substitute for professional veterinary care. The advice here doesn't create a veterinarian-client-patient relationship, and our vets can't diagnose or treat your pet remotely. For emergencies or specific medical concerns, always contact your local veterinarian immediately. Your pet's health is unique, and decisions should only be made after consulting with a qualified professional. By using this forum, you acknowledge these limitations and agree to seek in-person veterinary advice for all your pet's health needs. View our content guidelines.
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