Pet parents who have a cat with kidney disease have a lot on their plates. While reversing this condition isn't possible, it is possible to help to control its symptoms and to lower your cat's blood toxicity. If you know your cat has kidney disease, keep an eye out for these symptoms; they may mean that your cat needs immediate care from a vet.
Nausea is unfortunately common in cats who experience kidney disease, but when it rises to a particularly high level, it can induce vomiting. This is a big problem for cats with kidney disease.
If your cat throws up, make a note of what exactly came up. Is it food, or just bile/fluid? This is important information for your vet to know. If it's just bile or fluid, it may indicate that your cat isn't eating well and that their vomiting is being triggered purely by nausea, not by something bad that they ate.
Lack of Appetite
A lack of appetite can often go hand-in-hand with vomiting in cats. You see, as their kidneys fail to do their job as well as they should, the appetite can waver. This is because blood toxicity rises - the kidneys can't filter out everything as well as they should - and it induces nausea and sometimes even stomach pain. This makes it very hard for your cat to be willing to eat, but it's important that they do. They not only need the nutrition to stay alive in general, but starvation can trigger fatty liver disease, which is another problem your cat doesn't need right now.
Thirst and urination also go together when a cat has kidney disease. Most cats with kidney disease will drink and urinate more than those who don't have it, but you may notice that your cat seems even more desperate to down fluids and then use the litter box. This is because the kidneys utilize water when they're filtering out the blood. But when the kidneys become less effective due to kidney disease, they utilize more water to do it. This means that in order for your cat's kidneys to work anywhere near as well as they once did, your cat has to drink more and will likely end up peeing more as a result. But when your cat's blood toxicity rises to dangerous levels, this urge will become even stronger. In particular, keep an eye out for your cat peeing in inappropriate places - this may mean that they need to go NOW due to an excess of water intake and can't hold it until they get to the litter box.
Kidney disease is incurable in cats, but that doesn't mean that your kitty can't live a long and fruitful life. If your cat is exhibiting any of these symptoms, bring them to your local veterinary hospital for an examination and treatment in the form of IV fluids. This will help to flush the blood of its toxins and will provide the kidneys with the hydration that they need to do their job as well as they can.