Types of kidney disease in cats

Chronic kidney disease 

Chronic kidney disease is when the kidneys gradually stop working properly. Often
this happens in older cats however it can be due to pre-existing issues.

Acute kidney disease 

Acute kidney disease is when the kidneys abruptly stop working typically due to kidney damage as a result of infections, ingesting toxins, or drugs. This can develop over a matter of hours
days or weeks.

Kidney disease in cats guide.