Defining Peritoneal Dialysis Adequacy: Kt/Vurea Revisited

Figures & data

Figure 1. Fluid and solute removal with 1.5% glucose dialysis solution during a single dwell. The unit of fluid removal is in liters. The unit of solute removal is in grams, except for inulin, which is in micrograms. To facilitate the comparison, creatinine removal was magnified ten times.

Figure 2. Relationship between total dietary protein intake and dialysis dose base on nitrogen balance with different residual renal function, achieving a blood urea level of 25 mmol/L in a 60 kg patient. A: residual renal clearance of urea at 0 mL/min; B: residual renal clearance of urea at 0.5 mL/min; C: residual renal clearance of urea at 1.0 mL/min; D: residual renal clearance of urea at 1.5 mL/min.

Table 1 Relationship between dialysis drainage volume and Kt/Vurea in a 60 Kg anuric patient with serum urea concentration of 25 mmol/L

DPI (g/Kg/d)	VD (L)	Kt/Vurea
0.6	3.774	0.72
0.7	5.218	1.00
0.8	6.662	1.27
0.9	8.105	1.55
1.0	9.549	1.82
1.1	10.992	2.10
1.2	12.436	2.38