Stage 1Rise in serum creatinine 26.5 mol/L in 48 h, or 23、rise 1.5-1.9 times from baselineb0.5 mL kg1h1for 6-12 h Stage 2Rise in serum creatinine 2.0-2.9 times from baselineb0.5 mL kg1h1for 12h Stage 3Rise in serum creatinine 3 times from baseline, or increase in serum ...