Acute Kidney Injury in Patients With Acute Respiratory Distress Syndrome

"AKI was classified based on the worst of either creatinine or urine output criterion as follows:~Stage I 1.5-1.9 times baseline OR ≥0.3 mg/dl increase in the serum creatinine, OR urine output \<0.5 ml/kg per hour for 6 to 12 hours.~Stage II 2.0-2.9 times baseline increase in the serum creatinine OR urine output \<0.5 ml/kg per hour for ≥12 hours.~Stage III 3.0 times baseline increase in the serum creatinine OR increase in serum creatinine to ≥4.0 mg OR urine output of \<0.3 ml/kg per hour for ≥24 hours, OR anuria for ≥12 hours OR the initiation of renal replacement therapy."