Low temperature sterilization using hydrogen peroxide

Can hydrogen peroxide kill resistant spore forming bacteria?

Yes

Does hydrogen peroxide requires aeration after sterilization process?

No

Is the time frame shorter or longer than ETO?

Shorter time frame

The liquid hydrogen peroxide is _____ into the chamber once it has been taken to ____ pressure.

NOTE: some models change the vapor into a _____ state (why is this done?)

Vaporized

Negative

Plasma

This is done to ensure no residual is left behind

Low-temperature H2O2 cycle lengths vary from ___ min to ____ min

Depends on instrument being sterilized

24 min to 75 min

Only byproducts of ____ and ___ remain (harmless)

Water and oxygen

Sterilant is provided in ______ or disposable containers

cassettes

which materials are not appropriate for H2O2?

Powders, liquids, cellulose-based materials

Are dead end lumens allowed?

NO

Can vacuum sensitive devices be sterilized in this manner?

NO

Hydrogen peroxide phases

Conditioning:

Charge phase (injection):

Exposure phase (diffusion): How long?

H2O2 elimination phase:

Vent Phase:

Conditioning: air is removed

Charge phase (injection): H2O2 added

Exposure phase (diffusion): 5 to 20 min

H2O2 elimination phase: Plasma or evacuation

Vent phase: filtered air is introduced

Four critical process variables:

Temperature

Time

H2O2 concentration

Plasma (if applicable)

Sterilant removal strategies of

STERRAD

V-Pro systems

STERRAD: uses plasma

V-Pro: Vacuum

Do instruments need to be completely dry before sterilization

YES or NO

YES

SAL processes must have

1-3

Biological indicators

Chemical indicators (inside and outside)

Sterilizer displays and cycle printouts

Length of VHP/Ozone

5 phases?

45 to 110 minutes

Evacuation

Injection

Exposure

Purge

Vent

VHP/Ozone can sterilize lumens up to ____ m long

3.5 m