Background: In daily clinical practice two useful tools for calculation of hemodialysis adequacy are Urea Kinetic Modeling and Urea Reduction Ratio (URR). The amount of dialysis that a patient receives can impact morbidity and mortality. The main goal of this research is investigating of dialysis adequacy in patients undergoing dialysis in hemodialysis ward.

Material and Methods: This descriptive study was performed on 93 patients admitted in hemodialysis ward.Pre- and post-dialysis blood samples for measurement of BUN levels were obtained according to 2006 National Kidney Foundation guidelines.kt/v Daugirdas formula and URR were used to assess the adequacy of hemodialysis. Data was analyzed by parametric and non parametric tests using the spss version 19 software.

Results: The results of the study show that 59.1 % patients were kt/v &rsaquo1.2 and 53.8% of them were URR&rsaquo 65%. The mean of kt/v and URR were 1.35±0.53 and 66.15%±12.48 respectively .The minimum and maximum kt/v indices were 0.20 and 4.02 and The minimum and maximum URR were 11.50% and 95.10% respectively.

Conclusion: according to the dialysis adequacy indices (kt/v and URR) more than 40% of patients admitted to this Hemodialysis ward received inadequate hemodialysis services that need more supervision and follow up.