Koby's pee has been very yellow recently and I am concerned that he has a UTI. I called the vet to make an appointment and he told me that a UA would be around $202 + $30 for the "cysto". Whats a cysto? Apparently, they collect the sample by puncturing and drawing urine from the bladder with a needle. I was under the impression that I just needed to collect a sample while he was peeing..? Is this standard pricing/procedure? I thought a UA was pretty simple and not costly.