Kidney Failure and Hepatitis in Cats
Kidney failure is the decline of the function of the kidney, which results in changes to all body systems. The kidneys filter the blood and remove waste, passing it from the body in urine. They also produce hormones that stimulate the red blood cells and look after calcium balance.
Older cats are at a greater risk from kidney failure, but there are always exceptions to the rule, so never run the risk of doing nothing if you think it could be the kidneys.
Some of the signs to look out for are decreased urine, vomiting, weakness and a loss of appetite. If your pet has any of these symptoms, it is vital to get it to your vet immediately, so he/she can run tests to verify kidney failure and start medication.