Fig. 1

Box plots representing urine Na+, serum creatinine, urine urea, and fractional excretion of urea (FEurea) at the time of oliguria recognition, according to cardiac fluid responsiveness
Box plots representing urine Na+, serum creatinine, urine urea, and fractional excretion of urea (FEurea) at the time of oliguria recognition, according to cardiac fluid responsiveness