I was wondering what most dialysis facilities are doing with the patients that can not reach the desired KT/V. I saw the news article posted on Renalweb and was curios as to how many people are doing tandem dialyzers. I know that Molded Products sells components that are patented for this procedure. I believe that GW University Hospital and the University of Virginia are also doing these procedures.

Please go to this site.It will give you some information regarding:
Dialyzer's placed in series or parallel during dialysis.
http://www.irvingdialysis.com/dc/tandem.html