NEY D O SLOBAL AKI is defined as any of the following(Not Graded: Increase in SCr by 20.3 mg/dl (26.5 umol/I) within 48 hours; or Increase in SCr to >1.5 times baseline which is known or presumed to have occurred within the prior 7 days; or Urine volume <0.5 ml/kg/h for 6 hours