Blood or urine is commonly collected to test for how the kidneys are functioning. Some kidney function tests include: creatine, creatinine-urine, creatine clearance, and BUN test.
Review Date 10/19/2022
Updated by: Walead Latif, MD, Nephrologist and Clinical Associate Professor, Rutgers Medical School, Newark, NJ. Review provided by VeriMed Healthcare Network. Also reviewed by David C. Dugdale, MD, Medical Director, Brenda Conaway, Editorial Director, and the A.D.A.M. Editorial team.