Kidney Function Test Sample Collection. Other tests require collection of all urine produced for a full 24 hours. The speci c gravity of at least one sample should fall.
A kidney function test may check to see if the kidneys are filtering waste products too slowly. The kidney acr and gfr values are considered to be of great importance. A 24 hour urine test shows how much urine your kidneys produce can give an more accurate measurement of how well your kidney are working and how much protein leaks from the kidney into the urine in one day.
Blood urine tests help to monitor any kidney problems.
A kidney biopsy is done to help measure the level of kidney disease kidney function or diagnose cancer. 2002 clinical practice guidelines for chronic kidney disease stage description gfr 2 ml min 1 73 m 1 kidney damage with normal or gfr 90 2 kidney damage with mild gfr 60 89 3 moderate gfr 30 59 4 severe gfr 15 29 5 kidney failure 15 or dialysis. The most basic criterion for diagnosing kidney disease is a decreased glomerular filtration rate gfr value. It s recommended to conduct routine kidney function tests to rule out any abnormalities.