WorksheetsMTR Chapter 07: Surgical Asepsis and Sterility
Total questions: 68
Worksheet time: 34mins
Name
Class
Date
1.
Which of the following terms means the number of microbes or amount of organic debris on an object at any given time?
a)
asepsis
b)
bioburden
c)
infection
d)
sepsis
2.
Which of the following chemicals is a high-level disinfectant when items are immersed for twenty to thirty minutes and a sterilant if items remain immersed for ten hours?
a)
glutaraldehyde
b)
isopropyl alcohol
c)
quaternary ammonium compounds
d)
sodium hypochlorite
3.
Which of the following parts of the instrument reprocessing cycle is performed intraoperatively?
a)
mechanical decontamination
b)
steam sterilization
c)
ultrasonic washer
d)
wiping with sterile water
4.
Which of the following types of processes does the ultrasonic cleaner use to dislodge minute particles of soil and organic debris?
a)
cavitation
b)
chelation
c)
emulsification
d)
solubilization
5.
Which of the following types of packaging systems has filters and removable locking devices?
a)
nonwoven wrapped
b)
paper-plastic peel packs
c)
rigid containers
d)
woven wrapped
6.
Which of the following sterilization methods is most commonly used, safest, least expensive, and appropriate for the majority of surgical instruments?
a)
ethylene oxide
b)
ionizing radiation
c)
peracetic acid
d)
saturated steam
7.
Which of the following types of dating systems denotes the number of the calendar day from 1 through 365/366?
a)
alphanumeric
b)
Cartesian
c)
Julian
d)
military
8.
The biological indicator (BI) for the steam sterilization method is:
a)
DART.
b)
Bowie-Dick.
c)
Bacillus atrophaeus.
d)
Geobacillus stearothermophilus.
9.
Contamination caused by the passage of microorganisms through a sterilized package by way of moisture wicking is termed:
a)
saturation.
b)
strike-through.
c)
solubilization.
d)
sequestration.
10.
Which of the following sterilization methods presents the greatest exposure risk to CSPD personnel, is expensive, and requires the longest total cycle time?
a)
ethylene oxide
b)
hydrogen peroxide gas plasma
c)
peracetic acid
d)
saturated steam under pressure
11.
Cidex™ is the trade name for which of the following methods of sterilization?
a)
ethylene oxide
b)
glutaraldehyde
c)
hydrogen peroxide gas plasma
d)
peracetic acid
12.
When opening a wrapped item such as a gown on a Mayo stand, the contents and wrapper are considered sterile up to what distance from the edge of the wrapper?
a)
all the way to the edge
b)
one inch from the edge
c)
two inches from the edge
d)
Only the item itself is sterile.
13.
Which of the following terms refers to a barrier, such as plastic-backed table cover, that does NOT allow for the passage of liquid through it?
a)
integral
b)
insoluble
c)
impervious
d)
imperceptible
14.
Which of the following types of wrapper material is NOT compatible with the hydrogen peroxide gas plasma sterilization method?
a)
cloth
b)
muslin
c)
paper
d)
Tyvek
15.
The relationship of steam pressure to temperature in a steam sterilizer is:
a)
increased pressure increases temperature.
b)
increased temperature increases pressure.
c)
decreased pressure increases temperature.
d)
decreased temperature increases pressure.
16.
The physical or chemical process by which all living microorganisms, including spores, are killed is:
a)
decontamination.
b)
disinfection.
c)
sanitization.
d)
sterilization.
17.
When nested basin sets are being sterilized, they should be placed in the steam sterilizer:
a)
fold side down with a towel used to separate the item.
b)
fold side down with tape holding them together securely.
c)
facing upright with a towel used to separate them.
d)
facing upright with tape holding them together.
18.
Why are large steam sterilizers loaded with space between wrapped items or trays?
a)
It ensures that the carts are not over-weighted.
b)
It makes it easier to unload when the cycle is complete.
c)
It allows adequate circulation and penetration of steam to all surfaces.
d)
It allows for air to remain inside the packages to facilitate steam penetration.
19.
Which of the following terms is used for inanimate objects that harbor microorganisms that contribute to environmental contamination?
a)
flora
b)
fomites
c)
vectors
d)
viruses
20.
Which of the following terms is NOT a classification of patient care items?
a)
critical
b)
hypercritical
c)
noncritical
d)
semi-critical
21.
Which of the following substances would be appropriate for use on animate surfaces?
a)
antiseptic
b)
decontaminant
c)
disinfectant
d)
sterilant
22.
Which of the following patient care items would be classified as noncritical?
a)
colonoscopes
b)
hypodermic needles
c)
laryngoscopes
d)
pulse oximeters
23.
Which of the following types of chemical solutions is made of catalysts that aid in breaking down proteinaceous debris such as blood and fat?
a)
antiseptic
b)
disinfectant
c)
emulsifier
d)
enzymatic
24.
Which of the following terms is the common name for the high-level disinfectant sodium hypochlorite?
a)
ammonia
b)
bleach
c)
peroxide
d)
vinegar
25.
Another name for the intermediate-level disinfectant compound phenol is:
a)
amino acid.
b)
carbolic acid.
c)
muriatic acid.
d)
peracetic acid.
26.
Which of the following substances would be appropriate for soaking instruments covered with bioburden during a surgical procedure?
a)
isopropyl alcohol
b)
peracetic acid
c)
sterile saline
d)
sterile water
27.
Which of the following terms is used to describe the process of removing all soiled linen, waste, and instruments from the room and cleaning furniture, floors, or other contaminated surfaces in preparation for opening new supplies for a subsequent case?
a)
changeover
b)
concurrent cleaning
c)
terminal cleaning
d)
turnover
28.
All of the following choices are environmental specifications for the decontamination room in CSPD EXCEPT:
a)
air exchange rate, minimum of ten per hour.
b)
humidity between 35% and 72%.
c)
positive air pressure maintained.
d)
temperature between 64°F and 70°F.
29.
During manual cleaning of surgical instruments, which of the following types of solutions should be used?
a)
cold water, detergent, and enzymatic cleaner with high pH
b)
lukewarm water, detergent, and enzymatic cleaner with neutral pH
c)
hot water, detergent, and enzymatic cleaner with high pH
d)
cold sterile water and enzymatic solution with low pH
30.
Which of the following types of instruments must be cleaned with bristle brushes on wires, pipe cleaners, or handheld pressure guns?
a)
microsurgical scissors
b)
self-retaining retractors
c)
suction tip lumens
d)
tissue forceps
31.
A potential risk of placing surgical instruments of dissimilar metallic type together in a washer sterilizer cycle is:
a)
alarm triggered by washer sterilizer.
b)
bioburden contamination.
c)
electrolytic conduction reaction.
d)
static electrical spark.
32.
Which of the following terms is used for the process of lubricating stiffened stainless steel surgical instruments by immersion in a water-soluble solution?
a)
bathing
b)
dunking
c)
greasing
d)
milking
33.
Which of the following cleaning methods for surgical instrumentation relies on bubbles imploding, creating a vacuum that dislodges minute particles in crevices of instruments?
a)
manual soak
b)
ultrasonic cleaner
c)
washer decontaminator
d)
washer sterilizer
34.
Which of the following types of surgical instruments must NEVER be immersed in any type of mechanical decontaminating equipment?
a)
powered
b)
stainless steel
c)
titanium
d)
tungsten-carbide
35.
Why are items disinfected or sterilized in activated glutaraldehyde dried prior to submersion?
a)
Moisture will prevent sterilant from reaching all surfaces.
b)
Moisture will create a toxic chemical reaction with sterilant.
c)
Moisture will cause air bubbles to form and prevent full contact.
d)
Moisture will eventually dilute the concentration to ineffective levels.
36.
Before opening any sterilely packaged item, what is MOST important to verify about the package?
a)
date sterilized
b)
integrity of package
c)
internal indicator/integrator
d)
sterilization cycle number
37.
Which of the following positions is acceptable for placement of a scrubbed, gowned, and gloved surgical technologist's hands?
a)
clasped together in front at waist level
b)
grasping edge of draped back table with fingers coiled under table edge
c)
hanging down at sides with hands below table level
d)
tucked into axillary region (armpits)
38.
Sterilely attired surgical team members should pass one another in any of the following ways EXCEPT:
a)
back to back.
b)
front to front.
c)
front to back.
d)
rotating 360° around.
39.
A nonsterile person should approach a sterile area face forward while maintaining a distance of:
a)
six inches.
b)
twelve inches.
c)
two feet.
d)
six feet.
40.
When a sterilely attired surgical technologist drapes an unsterile table, they open the drape:
a)
away from themselves first.
b)
by shaking out folds first and laying it across the table.
c)
toward themselves first.
d)
toward sides and pulling drape down well below edge.
41.
Which of the following factors is the MOST important in a surgical technologist's role in preventing surgical site infections?
a)
extensive knowledge of anatomy
b)
high GPA while a student
c)
participation in the "time out"
d)
strict surgical conscience
42.
Which of the following concepts has replaced the previous system of assessing storage conditions and package integrity based on an arbitrary expiration designation?
a)
double wrapping
b)
event-related
c)
Julian dating
d)
time-related
43.
Which of the following methods of sterilization uses gamma rays or beta particles and is chiefly used by large manufacturing companies?
a)
dry heat
b)
ethylene oxide
c)
hydrogen peroxide gas plasma
d)
ionizing radiation
44.
The recommended biological indicator (BI) for hydrogen peroxide gas plasma is:
a)
Bacillus atrophaeus
b)
Bacillus subtilis
c)
Geobacillus stearothermophilus
d)
Staphylococcus aureus
45.
The Bowie-Dick test is performed for which of the following sterilization methods?
a)
ethylene oxide gas
b)
activated glutaraldehyde
c)
hydrogen peroxide gas plasma
d)
prevacuum air removal steam
46.
Gravity displacement steam sterilizer cycles are much shorter than prevacuum cycles.
a)
"True"
b)
"False"
47.
Sterilization process monitors include mechanical, chemical, and biological methods to ensure all parameters were met.
a)
"True"
b)
"False"
48.
Internal chemical indicator/integrators should be placed in the center or most challenging portion of a tray for the sterilant to reach.
a)
"True"
b)
"False"
49.
The relative humidity in an ethylene oxide sterilizer should be below 30% to aid in the penetration of the gas through bacterial spores' protective coating.
a)
"True"
b)
"False"
50.
Performing the surgical scrub without a brush or sponge is acceptable.
a)
"True"
b)
"False"
51.
Lisa is being oriented at a new surgical center. The director states that all the sterile instrument baskets are not dated for expiration. Lisa assumes that the facility policy regarding sterile items is:
a)
wrong and needs to be revised.
b)
to use the Julian date.
c)
event-related sterility.
d)
a pilot program.
52.
The STERRAD sterilization machine uses __________ for sterilization.
a)
cidex.
b)
steam.
c)
hydrogen peroxide.
d)
peracetic acid.
53.
Items that have been rendered free of all living organisms, including spores, are called:
a)
surgically clean.
b)
sterile.
c)
disinfected.
d)
aseptic.
54.
A biological indicator is the test measure by which sterility is ensured. When a BI turns cloudy and yellow after twenty-four hours of incubation, this indicates:
a)
that the nutrients need to incubate for forty-eight hours.
b)
that there is a need for a retest.
c)
that there is a biological growth load failure.
d)
that it is sterile.
55.
Glutaraldehyde is a high-level disinfectant that can also be used as a sterilant. An item will need to be immersed in CIDEX for __________ to be considered sterile and for __________ to be considered high-level disinfected.
a)
twenty-eight days; twenty minutes
b)
ten hours; twenty minutes
c)
fourteen days; ten minutes
d)
twenty-four hours; ten minutes
56.
A break in a sterile field in which the sterile surgical assistant touches an unsterile IV pole and then touches the sterile field is:
a)
an infection.
b)
a cross-contamination.
c)
a bioburden.
d)
a decontamination.
57.
John, a CST who is setting up for colon resection in room 5, is counting with the circulator when the resident comes in the room to inform them that the surgeon wants to perform a colonoscopy, as well as the resection. John knows that the colonoscope is:
a)
a critical care item.
b)
a non-critical item.
c)
a sterile piece of equipment.
d)
a semi-critical item that is nonsterile.
58.
The disadvantage of using alcohol for disinfection of the skin is that it:
a)
aids in foaming.
b)
reduces the number of bacteria/microbes on skin.
c)
is highly flammable.
d)
is non-toxic.
59.
The ultrasonic cleaner is a piece of equipment that:
a)
is essential for flash cycles.
b)
disinfects instrumentation.
c)
sterilizes instrumentation.
d)
uses cavitation to clean instruments.
60.
The Bowie Dick test or the DART test are used in steam sterilizers:
a)
to guarantee sterility.
b)
to test steam quality.
c)
to test chemical indicators.
d)
to check for air removal and entrapment.
61.
Which of the following sterilization methods would be the most appropriate for anhydrous powders?
a)
hydrogen peroxide gas plasma
b)
dry heat
c)
chlorine dioxide
d)
peracetic acid
62.
Vaporized peracetic acid would be used to sterilize which of the following instruments?
a)
pins/prosthesis
b)
sutures
c)
batteries
d)
vascular grafts and stents
63.
The purpose of the impervious coverings located on the lowest shelves that house sterile instruments and supplies is:
a)
to allow for slower air circulation.
b)
to prevent tears.
c)
to protect from inadvertent splashing when cleaning the floor.
d)
to provide a more consistent temperature.
64.
When labeling a Tyvek pack, the marker should be applied:
a)
on the plastic side.
b)
after sterilization.
c)
on the paper side.
d)
on the inside.
65.
Instruments that arrive to the sterile processing department after a procedure are considered to be a biohazard until which of the following points in the instrument processing cycle?
a)
removal from ultrasonic cleaner
b)
inspection
c)
sorting and disassembly
d)
decontamination
66.
If the CST is milking an instrument, they are:
a)
cleaning the instrument.
b)
placing the instrument in the ultrasonic cleaner.
c)
lubricating the instrument.
d)
flushing the instrument.
67.
Which of the following statements describes IUSS?
a)
The item is placed in an open tray or covered rigid container that is specially designed to allow rapid gas penetration.
b)
The item is placed in an open tray or covered rigid container that is specially designed to allow rapid steam penetration.
c)
The item is placed in a closed tray or open rigid container that is specially designed to allow rapid gas penetration.
d)
The item is placed in a closed tray or open rigid container that is specially designed to allow rapid steam penetration.
68.
The gross debris on an inanimate object is called:
a)
flora.
b)
fomite.
c)
transient flora.
d)
bioburden.
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