Can be used to distinguish between Pre-renal AKI and Renal AKI in !AKI - Acute Kidney Injury

• High = prerenal Azotemia↑ =Dehydration, HF - Heart Failure

  • 20:1

• Low = intrinsic Renal AKI, Post-renal AKI , low protein intake, liver disease, vegetarianism

  • <10:1