| Methods |
Randomised controlled cross‐over trial,
5 studies on 5 separate experimental days
Study conducted in Dallas, Texas, USA,
One way ANOVA and t‐test |
| Participants |
6 CRF patients on haemodialysis |
| Interventions |
1). 8 gelatin capsules with 500 mL of water, versus
2). sodium polystyrene sulfonate (30 g of resin with 500 mL of water) versus
3). phenolphthalein‐docusate (8 tablets with 500 mL of water) versus
4). phenolphthalein‐docusate plus resin (8 tablets, 30 g of resin with 500 mL of water) versus
5). sorbitol plus resin (60 g of sorbitol, 30 g of resin with 500 mL of water) |
| Outcomes |
Faecal potassium output
Serum potassium concentration |
| Notes |
|
| Risk of bias |
| Bias |
Authors' judgement |
Support for judgement |
| Allocation concealment (selection bias) |
Unclear risk |
B ‐ Unclear |
