Blood tests show whether the kidneys are failing to remove wastes. Urine tests can show how quickly body wastes are being removed and whether the kidneys are also leaking abnormal amounts of protein. Blood Tests Serum creatinine. Creatinine levels in the blood can vary, and each laboratory has its own normal range. As kidney disease progresses, the level of creatinine in the blood increases.
Some urine tests require only a few ounces of urine.
But some tests require collection of all urine produced for a full 24 hours. A 24-hour urine test shows how much urine your kidneys produce in 1 day. The test also can give an accurate measurement of how much protein leaks from the kidney into the urine in 1 day. CHID is a database produced by health-related agencies of the Federal Government. This database provides titles, abstracts, and availability information for health information and health education resources.