Introduction & Objective: Cardiovascular diseases and inadequacy of dialysis are the leading causes of mortality and morbidity in the dialyzing patients. Improvement of the dialysis efficacy has important role in improving the patient’s prognosis. Aim of the current study was to determine the adequacy of dialysis in patients under hemodialysis in dialysis department of Ekbatan Hospital of Hamadan.

Materials & Methods: The study was descriptive, cross-sectional. In this study forty two patients underlie dialysis were enrolled and evaluated. Variables, included the patient’s weight before and after dialysis, ultrafiltration, BUN before and after dialysis, the time of dialysis, speed of blood circulation, rate of filter clearance were recorded in a checklist. Computerized analysis of the data was performed and clearance rate of urea by dialysis Kt/V (daugirdas II) and URR were measured.

Results: According to the obtained results 35.7% of patients have URR >65% that the results were in accord with standard scales, and revealed adequate dialysis. About 38.1% had URR near to accepted range (55%-65%). The rest of individuals i.e. about 25.1% had URR lower than accepted range. Results obtained from Kt/v calculation showed that 26.2% of individuals had Kt/v between 1.21 and 1.7, that the results were in accord with standard scales, and revealed adequate dialysis. About 50% were near accepted range (0.9-1.2). The rest of individuals about 23.8% had Kt/v<0.9.

Conclusion: This study suggests that the dialysis in Ekbatan hemodialysis center have near standard adequacy (URR,Kt/v).