Acute Renal Failure is defined by the following 1 __ within 48hrs 2 __ prior to 7 days 3 __ for 6 hours

1 Increase in SCR by >_ 0.3mg/dl within 48hrs 2 Increase in SCR >_ 1.5 times baseline prior to 7 days 3 Urine volume < 0.5 mg /kg/h for 6 hours