Fig. 2From: Real-time urinary electrolyte monitoring after furosemide administration in surgical ICU patients with normal renal functionDifference between chloride and sodium fractional excretion at baseline and after furosemide administration. Data are reported as hourly median, interquartile ranges, and 5° and 95° percentile range of the difference between fractional excretion of chloride and fractional excretion of sodium before and after the administration of an intravenous bolus of furosemide in the overall study population (single-dose group, group n = 39). Baseline denotes the time of furosemide administration. One-way ANOVA for repeated measurements was performed (P < 0.001 for time effect; *P < 0.05 vs. baseline, time 0). Na + sodium, Cl − chlorideBack to article page