disinfection, even if it is a good tool to confirm that cleaning has been
performed," says Dr. Green.
Related challenges with ATP are the lack of standard benchmarks to
classify surfaces as clean by ATP assays, and the variation in sensitivi-
ty and specificity between different luminometers and assay systems.
"Some ATP systems classify surfaces with < 250 RLUs as clean,
while other systems classify surfaces with < 100 RLUs as clean," says
Dr. Green, "leaving end users without clear definitions of clean, from
facility to facility, and product to product."
Microbial swabbing
Simply identifying the shortfalls of ATP testing, however, will not
bring us any closer to safer patients and cleaner surfaces.
Perioperative teams
and infection preven-
tionists need a way to
detect true contami-
nation of surfaces. So
what are your
options? Mr. Hughes
believes the future of
microbial monitoring
lies in culturing sur-
faces to provide bet-
ter results of the effi-
cacy of disinfection
and sanitizing.
This type of micro-
biological culture
sampling is best per-
6 8 • O U T PA T I E N T S U R G E R Y M A G A Z I N E • N O V E M B E R 2 0 1 8
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