Fig. 2From: Longitudinal trajectory of acidosis and mortality in acute kidney injury requiring continuous renal replacement therapyClustering of pH trajectories during the first 24 hours after starting continuous renal replacement therapy. 1st cluster, consistently normal pH levels on CRRT; 2nd cluster, suboptimal pH trajectory with initial pH 7.3, and gradually approached 7.4; 3rd cluster, recovering acidosis from pH 7.2 to 7.3; 4th cluster, aggravating tendency of acidosis from pH 7.3 to 7.2; 5th cluster, uncorrected pH trajectory less than 7.2Back to article page