Both test came back almost exactly the same.
Karl,
What did your doctor say to you about your labs? If there is a problem, surely your doctor has offered some advice. Despite that Johnny Falcon is our resident witch doctor here, his advice as well as that of others here should be taken with a grain of salt....well maybe not salt if you have hypertension, which is one of the causes of kidney disease.
I know more about kidney disease then I ever imagined I would because my wife has had chronic kidney disease for years due to her being diabetic. I take her to her doctor appointments and go in with her to ask the doctor questions she might not think of. For the last nine days, my wife has been in the hospital with total (acute) kidney failure. Even with this level of involvement in my wife's health, I suspect I know very little about kidney disease. What I do know is you need your kidneys to work in order for you to stay alive. If they fail completely as my wife's have, you are faced with the choice of undergoing dialysis or dying. Currently she's getting dialysis every other day and she's still not doing very well.