Module 6 Test

Question 1

Cleansing the skin before giving an injection

Answer 1

antisepsis

Question 2

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

Answer 2

disinfection

Question 3

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

Answer 3

sterilization

Question 4

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

Answer 4

sanitation

Question 5

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

Answer 5

disinfection

Question 6

Killing all forms of microbial life, including spores

Answer 6

sterilization

Question 7

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

Answer 7

sterilization

Question 8

Washing used instruments with a detergent and water before further processing

Answer 8

cleaning

Question 9

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

Answer 9

disinfection

Question 10

Required for material coming in contact with sterile tissue

Answer 10

sterilization

Question 11

A germicide may kill..

Answer 11

bacteria, viruses, fungi

Question 12

An effective high level disinfectant would be:

Answer 12

viricidal, sporicidal, fungicidal, bactericidal

Question 13

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

Answer 13

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

Question 14

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

Answer 14

material placed on perforated autoclave trays

Question 15

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.

Answer 15

the autoclave was not functioning properly

Question 16

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

Answer 16

it may not have been autoclaved

Question 17

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

Answer 17

1) wrappings are not wet

2) indicator strip is colored

3) item has been properly sterilized

Question 18

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

Answer 18

incineration

Question 19

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

Answer 19

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

Question 20

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:

Answer 20

the autoclave is not functioning properly

Question 21

Ethylene oxide:

Answer 21

1) is toxic to human tissue

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

3) does not destroy heat sensitive plastic items

Question 22

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

Answer 22

sterile processing department

Question 23

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

Answer 23

surface disinfectant spray or wipe

Question 24

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:

Answer 24

suspect that the fluid is contaminated with bacteria

Question 25

Autoclaves require:

Answer 25

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

Question 26

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

Answer 26

hypodermic needle

Question 27

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

Answer 27

bacterial spores, tubercle bacilli, lipid viruses, vegetative bacteria

Question 28

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:

Answer 28

intermediate level disinfectant

Question 29

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

Answer 29

vegatiative bacteria

Question 30

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

Answer 30

high level

Question 31

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

Answer 31

low level

Question 32

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

Answer 32

non critical items

Question 33

Strong bleach, as defined by Health Canada:

Answer 33

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

Question 34

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

Answer 34

may be used for routine cleaning of surfaces

Question 35

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

Answer 35

1) strength of the bleach solution 2) time elapsed since bleach was diluted and dispensed 3) presence of blood in the material being disinfected

Question 36

Disadvantages of bleach as a disinfectant include:

Answer 36

1) corrosive to metal 2) should be diluted fresh daily 3) irritating to skin and mucous membranes

Question 37

All of the following are iodine based disinfectants except:

Answer 37

chlorhexidine gluconate used for hand washing

Question 38

A disadvantage of iodine as a disinfectant is

Answer 38

may cause allergies

Question 39

Glutaraldehyde is an example of a:

Answer 39

high level disinfectant

Question 40

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

Answer 40

skin cleansing prior to invasive procedures

Question 41

Detergents and soaps have the following in common:

Answer 41

1) reduce surface tension 2) act as surfactants 3) act as wetting agents

Question 42

Alcohols suitable for use as disinfectants include:

Answer 42

ethanol isopropyl alcohol

Question 43

The optimal concentration of alcohol used as an antiseptic is:

Answer 43

70%

Question 44

Alcohols are rated as:

Answer 44

Intermediate level disinfectants

Question 45

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

Answer 45

skin antisepsis

Question 46

The main effect of soaps and detergents is:

Answer 46

reducing surface tension allowing removal of bacteria

Question 47

A detergent with antimicrobial activity is:

Answer 47

Zephiran

Question 48

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

Answer 48

quaternary ammonium compound

Question 49

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

Answer 49

to bathe newbornes

Question 50

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

Answer 50

chlorhexidine gluconate

Question 51

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?

Answer 51

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

Question 52

What is true of glutaraldehydes?

Answer 52

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

Question 53

Glutaraldehydes may be used in the health care setting:

Answer 53

to disenfect metal eqipment

Question 54

Peroxygens:

Answer 54

1) are high level disinfectants 2) may act as sterilants 3) contain peroxide / peracetic acid

Question 55

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

Answer 55

kills bacterial spores

Question 56

HEPA filters can be used to

Answer 56

remove microorganisms from air in a patient room

Question 56

Membrane filters can:

Answer 56

remove bacteria from fluids

Question 57

Methods of microbial control can include

Answer 57

1) ionizing radiation 2) boiling 3) ultraviolet light

Question 58

Aseptic technique would be used to

Answer 58

1) keep sterile items sterile 2) remove liquids from a vial 3) collect laboratory swabs for culture