Treatment of discarded blood units: disinfection with hypochlorite / formalin versus steam sterilization.

Abstract:

:Blood bank regulations and bio medical waste rules of India advocate disinfection of contaminated blood units. Incineration is not recommended due to poly-vinyl chloride (PVC) content of blood bags. This study was designed to evaluate the efficacy of chemical disinfection of blood units deliberately contaminated with Staphylococcus aureus and E. coli with 1 and 6 % hypochlorite, 10% formalin and 33% formaldehyde and autoclaving of blood units contaminated with the above mentioned vegetative forms and B. stearothermophilus spores. Only 33 % formaldehyde could bring about 5 log reduction of bacteria but it is highly irritating and toxic. Autoclaving at 15 lbs pressure for 2 hours uniformly inactivated the vegetative forms and B. stearothermophilus spores. Thus, autoclaving of PVC blood bags is a safer and reliable method compared to chemical disinfection.

journal_name

Indian J Med Microbiol

authors

Chitnis V,Chitnis S,Patil S,Chitnis D

subject

Has Abstract

pub_date

2003-10-01 00:00:00

pages

265-7

issue

4

eissn

0255-0857

issn

1998-3646

journal_volume

21

pub_type

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