PURPOSE: To compare calculated Kt/V and Kt/V-OCM methods of dialysis dose. METHODS: This was a cross-sectional retrospective study with 14 patients who underwent 106 hemodialysis using Fresenius 4008S dialysis machine in the critical care unit of the "Noroeste Parana Teaching Hospital" from November 2007 to April 2008. RESULTS: Shapiro-Wilk test indicated that there was no normal distribution between the calculated Kt/V and the machine Kt/V (p>0.05). Wilcoxon test showed a statistically significant difference between the two measurements (p <.0001). CONCLUSION: There is a need for further studies that consider all factors involved with the online calculation of the urea depuration for the utilization of the Kt/V-OCM.
Renal dialysis; Nursing care; Quality assurance, health care