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Kidney failure is very common in cats, between 20% and 50% over the age of 15 will suffer to some degree. Unfortunately, it is often missed until it becomes advanced because the early symptoms are subtle and our feline friends are very good at hiding illness. However, the sooner it is caught the better
In most cases the cause for the kidney’s failing is unknown, it is just a gradual dying off of the tissue, particularly in elderly cats. If younger animals are diagnosed with the problem then can be a more obvious cause but it doesn’t often change the treatment plan.
The kidneys are the filtering organs for the blood. They remove all the waste products and toxins, sending them out in the urine. When they start to malfunction they become less efficient, these by-products stay in the body and, as they are effectively poisons, make the animal feel unwell and mildly nauseous. They are often mildly dehydrated, so it is not unlike a permanent hangover.
Feeling sick understandably means affected cats have poor appetites and to survive the body has to break down its own tissue. Unfortunately, this creates very high levels of toxic metabolites, which stay in the blood stream, make the cat feel worse, so they eat even less and so the vicious cycle continues. The toxins themselves also directly damage the kidneys, further exacerbating the problem….
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