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Flashcards in 3: Preparation for aseptic surgery Deck (34)
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1
Q

Sterilization

A

destruction of all living organisms

2
Q

Chemical indicators

A

do not provide time exposed to temperature

paper strips

3
Q

non-irritating to the skin
effective against gram + and -
bactericidal

A

Chlorhexidine

4
Q

Shelf life of double wrapped paper

A

Closed: 6 months
Open: 3 months

5
Q

Most common agents used in chemical sterilization

A

ethylene oxide

Plasma

6
Q

Biological indicator

A

truly indicates sterility

7
Q

How should muslin be wrapped

A

double thickness

8
Q

Heat

A

Can be dry or wet (100% humidity)

9
Q

antiseptics that bind to idodine.
non-toxic
non-irritating

A

Iodophors

betadine

10
Q

Steam sterilization

A

Uses pressure to reach high temps
permeates porous substances
autoclave

11
Q

Shelf life of double wrapped muslin

A

Closed cabinet: 8 weeks

Open shelves: 4 weeks

12
Q

Dry heat

A

oxidation process
slow
not common

13
Q

Can you sterilize the skin

A

no

14
Q

When antibacterial chemicals normally used on inanimate objects are also used on skin and wounds

A

antiseptics

15
Q

Shelf life of plastic/paper pouches

A

Closed: 1 year
Open: 6 months

16
Q

Filtration

A

separation of particulate matter from liquids and gasses

17
Q

Cold sterilization

A

soaking instruments in disinfectant

not recommended

18
Q

3 types of physical sterilization

A

Filtration
Radiation
Heat

19
Q

Radiation

A

used when heat or chemicals don’t work

commercial pre-packaged suture

20
Q

3 basic principles of aseptic techniques

A

1-prevent contamination of open wound
2-isolating the operative site from environment
3-creating a sterile field

21
Q

Problems with ethylene oxide

A

explosive

poison

22
Q

How long should you aerate before using instruments that were sterilized with ethylene oxide

A

48 hours

23
Q

reduces the bacterial flora of the skin
residual antibacterial activity
may cause burns if used on large areas of skin

A

Iodine preparations

24
Q

When do you use chemical sterilization

A

Delicate sharp edges
some plastics
optical viewing systems

25
Q

Most common agents used for preop skin prep in dogs

A

Chlorhexidine and iodophor compounds

26
Q

Disadvantages of iodophors

A

less effective in the presence of organic matter
dermal irritation
unreliable residual activity and toxicity

27
Q

common alcohol rub skin antiseptic

A

Ethyl alcohol

28
Q

3 types of sterility indicators

A

Physical
chemical
Biological

29
Q

wet heat

A

denaturation of bacterial protein molecules
100% humidity
common

30
Q

Flash autoclave

A

270 degrees
rubber things damaged
emergency

31
Q

Physical indicators

A

built into sterilizer
thermometers
interior of surgical pack not monitored

32
Q

Shelf life of sterile single wrapped muslin

A

closed: 1 week

Open shelves: 2 days

33
Q

Disinfectant

A

agent that destroys or inactivates microorganisms

34
Q

What should be included in surgical instrument packs sterilized

A

Not suture

gowns, towels, drapes folded specifically