Is it that it could just be dehydration?? Or something other simple like that?? They didn't seem at all alarmed when they told me, so I just don't feel that it is anything to worry about! But, I also have never had any kidney issues so if you feel it is something I certainly shouldn't ignore, I won't. I just don't understand how it would be anything serious because I am only twenty two, I know things can happen at any age, I just don't get why it would be of concern... I have had urine tests before, but no one ever said anything about my kidney function, but I don't know if they have to be testing kidneys to get feed back on it other urine tests were just to make sure I wasn't pregnant before prescribing birth control.