Liver disease can be a very frustrating disease to diagnose definitively. As the signs of liver disease can be vague and the fact that there are so many causes, your vet will discuss the best way to find out if your cat has liver disease, the cause and subsequently the appropriate treatment required.
The first clue as always comes from a thorough history, clinical examination and discussion about what your cat has been doing at home (have they shown any of the above listed symptoms/ had access to any toxins/ has there been a change in their environment or food?).
In most cases a blood test will be recommended to check a number of parameters including the liver and kidney enzymes, , the red and white blood cells and protein levels. Additional tests may also be required to assess pancreatic enzymes and thyroid hormone levels.
Further investigation of the liver may include radiographs and/ or an ultrasound to assess the structure of the liver and surrounding organs.
A biopsy or a small sample of the liver is generally required to determine the cause of any disease process. This can often be achieved with an ultrasound-guided biopsy but sometimes requires abdominal surgery.