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IPC > Module 6 Test > Flashcards

Module 6 Test Flashcards

1
Q

Cleansing the skin before giving an injection

A

antisepsis

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2
Q

Cleansing work surfaces with bleach solution or disinfectant wipe after each shift

A

disinfection

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3
Q

Processing a pacemaker in ethylene oxide prior to insertion in a patient

A

sterilization

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4
Q

Used dishes are washed with a detergent and hot water followed by hot water rinse

A

sanitation

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5
Q

Treatment of an instrument with a chemical solution that kills pathogenic microorganisms

A

disinfection

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6
Q

Killing all forms of microbial life, including spores

A

sterilization

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7
Q

Processing scalpel blades/ dental equipment to be used in surgery in an autoclave

A

sterilization

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8
Q

Washing used instruments with a detergent and water before further processing

A

cleaning

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9
Q

Killing pathogenic microbes, but not necessarily all microbes on an inanimate surface

A

disinfection

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10
Q

Required for material coming in contact with sterile tissue

A

sterilization

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11
Q

A germicide may kill..

A

bacteria, viruses, fungi

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12
Q

An effective high level disinfectant would be:

A

viricidal, sporicidal, fungicidal, bactericidal

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13
Q

The usual time for items to be sterilized in an autoclave is:

A

15 minutes from the time the material in the chamber reaches 121 C

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14
Q

What is a proper procedure for loading a bench top autoclave?

A

material placed on perforated autoclave trays

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15
Q

Two spore strips were placed in the routine autoclave load. These two strips and a control strip (not autoclaved) were incubated three days in broth. All three strips gave a cloudy broth.

A

the autoclave was not functioning properly

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16
Q

A suture tray wrapped and secured with autoclave tape does not show any dark markings on the tape.

A

it may not have been autoclaved

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17
Q

When using “sterile” items, you may use them if the:

A

1) wrappings are not wet

2) indicator strip is colored

3) item has been properly sterilized

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18
Q

Most biological waste produced in a clinical setting is terminally decontaminated by:

A

incineration

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19
Q

Which of the following is/are indications that autoclaved material may not be sterile?

A

1) report indicating growth from spore test

2) the date on the package indicates the material was autoclaved over a year ago

3) tape seal is brokentape seal is broken

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20
Q

The culture results of spore controls from an office autoclave indicated growth in the control strip, and growth in the strip placed in the bottom of the chamber. The other strip failed to grow. This is interpreted as:

A

the autoclave is not functioning properly

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21
Q

Ethylene oxide:

A

1) is toxic to human tissue

2) kills all forms of microbial life (including spores)

3) does not destroy heat sensitive plastic items

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22
Q

The most likely place to find an ethylene oxide sterilizer in a health care setting is:

A

sterile processing department

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23
Q

A “routine” patient area could be wiped down (terminally disinfected) with a:

A

surface disinfectant spray or wipe

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24
Q

You are about to use a needle and syringe to withdraw fluid from a vial for injection in to a patient when you notice that the normally clear fluid appears cloudy. You should:

A

suspect that the fluid is contaminated with bacteria

25
Q

Autoclaves require:

A

the routine use of spore strips ( biological indicator) to ensure efficiency

26
Q

According to the Spaulding classification, which of the following would be classified as a critical item?

A

hypodermic needle

27
Q

Which of the following lists microbes in order from most to least resistance to disinfectants?

A

bacterial spores, tubercle bacilli, lipid viruses, vegetative bacteria

28
Q

A disinfectant that kills vegetative bacteria, tubercle bacilli, fungi, lipid viruses and under some conditions spores and non-lipid viruses is classed by Spaulding as:

A

intermediate level disinfectant

29
Q

Which of the following is the least resistant to the action of disinfectants?

A

vegatiative bacteria

30
Q

Which of the following disinfectants has the ability to kill all forms of microbial life including spores?

A

high level

31
Q

Which of the following disinfectants will definitely not kill tubercle bacilli?

A

low level

32
Q

Vinyl gloves used as part of standard precautions would be considered:

A

non critical items

33
Q

Strong bleach, as defined by Health Canada:

A

should be diluted fresh daily, one part bleach plus nine parts water

34
Q

Which of the following statements applies to Health Canada weak bleach?

A

may be used for routine cleaning of surfaces

35
Q

Which of the following factors will affect the disinfectant properties of bleach?

A

1) strength of the bleach solution

2) time elapsed since bleach was diluted and dispensed

3) presence of blood in the material being disinfected

36
Q

Disadvantages of bleach as a disinfectant include:

A

1) corrosive to metal

2) should be diluted fresh daily

3) irritating to skin and mucous membranes

37
Q

All of the following are iodine based disinfectants except:

A

chlorhexidine gluconate used for hand washing

38
Q

A disadvantage of iodine as a disinfectant is

A

may cause allergies

39
Q

Glutaraldehyde is an example of a:

A

high level disinfectant

40
Q

In the health care setting, iodophores may be used for:

A

skin cleansing prior to invasive procedures

41
Q

Detergents and soaps have the following in common:

A

1) reduce surface tension

2) act as surfactants

3) act as wetting agents

42
Q

Alcohols suitable for use as disinfectants include:

A

ethanol
isopropyl alcohol

43
Q

The optimal concentration of alcohol used as an antiseptic is:

A

70%

44
Q

Alcohols are rated as:

A

Intermediate level disinfectants

45
Q

The most common use of alcohol in the health care setting is:

A

skin antisepsis

46
Q

The main effect of soaps and detergents is:

A

reducing surface tension allowing removal of bacteria

47
Q

A detergent with antimicrobial activity is:

A

Zephiran

48
Q

A type of disinfectant that has been found to support bacterial growth is:

A

quaternary ammonium compound

49
Q

Hexachlorophene products, such as Phisohex, should not be used:

A

to bathe newbornes

50
Q

A hand wash product containing the following ingredient is highly antibacterial:

A

chlorhexidine gluconate

51
Q

The patient waiting room in a health care facility often has some toys. Children with infectious diseases may contaminate the toys, making them vehicles of transport for microorganisms. What type of toys do you think are suitable for the waiting rooms?

A

plastic with smooth surfaces and no crevices
may be immersed in liquid disinfectant

52
Q

What is true of glutaraldehydes?

A

1) must be activated before use

2) limited shelf life after activation

3) sterilization achieved within 30 minutes - NOT TRUE.. ITS 10 MINS

4) toxic to human tissue

53
Q

Glutaraldehydes may be used in the health care setting:

A

to disenfect metal eqipment

54
Q

Peroxygens:

A

1) are high level disinfectants

2) may act as sterilants

3) contain peroxide / peracetic acid

55
Q

Pasteurization at 75 C for 30 minutes accomplishes all of the following except:

A

kills bacterial spores

56
Q

HEPA filters can be used to

A

remove microorganisms from air in a patient room

56
Q

Membrane filters can:

A

remove bacteria from fluids

57
Q

Methods of microbial control can include

A

1) ionizing radiation

2) boiling

3) ultraviolet light

58
Q

Aseptic technique would be used to

A

1) keep sterile items sterile

2) remove liquids from a vial

3) collect laboratory swabs for culture

IPC (18 decks)

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