Table 2.

Solute removal by hemodialysis

SoluteConcentrationRemoval (mg per treatment)
Total Pre (mg/dl)Reduction Ratio (%)Free Pre (mg/dl)Reduction Ratio (%)Free Pre (%)Free Post (%)
UreaN47±2275±514.2±7.5×103
Creatinine8.9±2.267±51.9±0.7×103
Phenylacetylglutamine4.7±3.180±54.3±2.880±489±889±90.82±0.61×103
Hippurate4.0±2.071±5a2.1±1.279±551±7b36±50.55±0.28×103
Indoxyl Sulfate2.2±0.936±130.15±0.1247±176.4±2.85.0±1.8109±64
p-Cresol Sulfate4.5±2.331±130.26±0.2143±195.1±2.24.0±1.3171±119
  • Values are mean±SD for eight hemodialysis patients.

  • a P<0.05 for reduction ratio of total plasma concentration compared with reduction ratio of free plasma concentration.

  • b P<0.05 for percent free predialysis compared with percent free postdialysis concentration.