Nephrology Dialysis Transplantation, Vol 13, Issue 90005 12-16, Copyright © 1998 by Oxford University Press
G Cappelli, S Perrone and A Ciuffreda
The term 'ultrapure water' is a common way to define water used for on-line
treatments: it refers to the absence of chemical, organic and
microbiological contamination. To be more accurate in definition, every
known and potential contaminant has to be fixed at its limit value. AAMI
recommendations and various Pharmacopoeias have set limits for dialysate
based on traditional dialysis treatments, but on-line treatments should
also be regulated by guidelines for infusion solutions. Modern water
treatment technology allows us to obtain a proper chemical quality both for
dialysate and infusion solutions in on-line dialysis. Technology alone,
however, cannot guarantee adequate microbiological quality if water
treatment is not linked to the appropriate maintenance, monitoring,
cleaning and sanitizing procedures. On-line dialysis treatments, as well as
high-flux dialysis, use the monitor as an on-site pharmaceutical factory
where sterilization by filtration forces nephrologists to look for
procedures to keep sterile water sterile.Key words:
haemodiafiltration; on-line; quality assurance; ultrafiltration;
ultrapure water
ORIGINAL ARTICLES
Water quality for on-line haemodiafiltration
Nephrology and Dialysis Unit, University Hospital of Modena, Modena, Italy
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