Fig. 2
From: Oral sodium bicarbonate in people on haemodialysis: a randomised controlled trial
Relationship between the effect of oral sodium bicarbonate on pre-dialysis bicarbonate and the effect on pre-dialysis potassium. Individual summary data are shown as well as the group averages (diamonds). There was no change in bicarbonate or potassium in control group (white). In the intervention group (grey) the reduction in pre-dialysis potassium during treatment, was dependent on an increase in pre-dialysis bicarbonate