Table 2.

Urea

Dialyzer	Dialysate flow rate (mL/min)	Clearance (mL/min)a	KoA (mL/min)b	Ko (cm/min)b
Optiflux F160NR	350	232 ± 3	720 ± 32	0.046 ± 0.002
	500	252 ± 7	703 ± 38	0.045 ± 0.002
	800	281 ± 3	776 ± 23	0.050 ± 0.001
Optiflux F200NR	350	237 ± 2	749 ± 20	0.038 ± 0.001
	500	270 ± 4	847 ± 33	0.043 ± 0.002
	800	282 ± 5	785 ± 35	0.040 ± 0.002
Revaclear	350	233 ± 4	718 ± 31	0.053 ± 0.002
	500	255 ± 5	713 ± 33	0.052 ± 0.002
	800	276 ± 3	732 ± 24	0.054 ± 0.002
Revaclear MAX	350	240 ± 3	789 ± 29	0.046 ± 0.002
	500	270 ± 3	852 ± 30	0.050 ± 0.002
	800	293 ± 3	884 ± 30	0.052 ± 0.002

^aClearances based on rate of disappearance from blood.

^bCalculated using the blood water flow rate (Q_BWi).

Data are presented as mean ± SEM for n = 12 observations. Statistical differences are described in the text.