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Microbiology > Surgical Asepsis > Flashcards

Surgical Asepsis Flashcards

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Biology 101 flashcards
1
Q

Bacteriocidal

A

agent that kills bacteria

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2
Q

Bacteriostatic

A

inhibition of bacterial growth

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3
Q

Disinfectant

A

agent that kills microorganisms on inanimate objects

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4
Q

Disinfection

A

process of destroying pathogenic microorganisms, except spores

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5
Q

Ultrasonic cleaners clean the instruments through the process of what

A

cavitation: formation of tiny bubbles that expand and implode to create a vacuum which dislodges minute particles of soil form the instrument

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6
Q

Saturated Steam under pressure

A

the safest most common thermal means of sterilizing supplies

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7
Q

Steam sterilizer at 250*F is at a pressure of what

A

15 to 17 psi

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8
Q

Steam sterilizer at 275*F is at a pressure of what

A

27 psi

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9
Q

What are the two test done daily to ensure the removal of air form the pre-vacuum sterilizer?

A

Bowie-Dick and DART daily air removal test

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10
Q

Dry heat is used to sterilize what

A

anhydrous oils, petroleum products, and talc, which steam can not penetrate

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11
Q

What is the common method of sterilizing?

A

Cobalt 60

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12
Q

Ethylene oxide is used to sterilize what?

A

heat and moisture sensitive items (plastic, rubber)

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13
Q

items must be clean and dry to prevent what

A

the formation of ethylene glycol

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14
Q

Sterilization for ethylene oxide takes how long?

A

10 hours

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15
Q

Activated glutaraldehyde is also called

A

cidex

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16
Q

What is cidex used to sterilize

A

endoscopes and for plastic and rubber items

17
Q

Sterrad uses what as a sterilizer?

A

hydrogen peroxide

18
Q

Sterrad works at what temperature?

A

104*F

19
Q

How long does it take the Sterrad to sterilize?

A

1 hour

20
Q

What can not be sterilized in the Sterrad?

A

Cellulose based products

21
Q

Steris uses what to sterilize?

A

Peracetic acid

22
Q

What equipment is sterilized in the steris?

A

endoscopes

23
Q

What temperature and how long does it take for the steris to work?

A

131*F for 20-25 minutes

24
Q

Items sterilized in the steris can not be what?

A

stored, they are for immediate use only.

25
Q

Gravity air displacement sterilizers occurs at what pressure and temperature? How long?

A

15 to 17 psi at 25-*F for 15 to 30 minutes

26
Q

Prevacuum sterilizers occur at what pressure and temperature and for how long?

A

27 psi, 270F to 276F. minimum exposure time is 4 minutes for a wrapped item. complete cycle takes 15-30 minutes.

27
Q

The flash sterilizer is set at what pressure and temperature?

A

27 psi and 270*F

28
Q

For an unwrapped, nonporous, stainless steel items without a lumen are exposed for a minimum time of what?

A

3 minutes

29
Q

For porous items or instruments with lumen or instrument marking tape the exposure time is what for prevacuum and gravity displacement?

A

4 minutes for prevaccum

10 minutes for gravity

30
Q

The biological monitoring spore test for a EO gas sterilizer is what?

A

bacillus subtilis

31
Q

The biological monitoring spore test for a steam sterilizer is what?

A

Bacillus steraothermophilus

32
Q

Muslin must be at least how many threads per square inch?

A

140

33
Q

Woven textile drape packs should not exceed what size and weight?

A

12x12x20 inches, weigh no more than 12 pounds.

34
Q

Surgical instrument packs should not exceed what weight??

A

16 pounds

35
Q

Doors to the OR are kept closed to maintain what type of air pressure in the room?

A

positive

36
Q

What type of action is used to surgically clean the hands and arms?

A

Chemical (germicidal) and mechanical

37
Q

What part of the gown is considered sterile?

A

The front from chest to table height or the height of the surgical field.

38
Q

Are the sleeves of the gown sterile?

A

They are sterile 2 inches above the elbow to the proximal edge of the cuff

Microbiology (12 decks)

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