Fig. 4

Change in urine AKI biomarkers along the first 10 days of admission. a–d Change in biomarker concentration between the different treatment groups (non-randomized, randomized to receive NaCl 23.4% and randomized to receive NaCl/Na-acetate 16.4%). The first time point is days 2–3, which was the day of consent, which was either admission day 2 or 3. *p < 0.05 between the groups. AKI, acute kidney injury