Urologist: Kidney and bladder problems are some of the most common problems that cats get so as cat-only vets we are familiar with diagnosing and managing these problems. Investigating these samples almost always starts with urine samples but sometimes blood samples, radiographs or ultrasound is needed. We like to correct the mistaken impression that cats with kidney disease die quickly; many cats with kidney disease remain happy for many years by looking for and treating the side effects of kidney disease (such as high blood pressure) before the cat starts showing signs from these.