問題一覧
1
The process by which all forms of microbial, including spores, are destroyed is known as
sterilization
2
the steam sterilizers heat sensing thermometer is located in the
drain line
3
in non-tabletop steam sterilizers,where are PCDs places to present the greatest challenge to the steam sterilizers
over the drain
4
the three parameters of steam sterilization are
steam under pressure, time and temperature
5
which of the following is the minimum exposure time for wrapped good in a dynamic-air-removal steam cycle at 275F (135C) and 28 to 30 psi?
10 minutes
6
when a one of a kind instrument is contaminated which sterilizer should be used?
immediate use steam sterilizer
7
during steam sterilization, which phase lasts about 30 mins?
drying
8
which of the following is the recommended cycle for processing decontaminated instruments from a suspected CJD case?
18 mins, 273F (134C), Prevacid cycle
9
most common form of sterilization is
steam
10
which method of sterilization is used to sterilize liquids?
gravity steam
11
which action should be taken when a wet pack is noted when unloading the sterilizer?
reprocess the item
12
this occurs when heat is added to dry steam in the absence of water
superheating
13
a control BI should always be positive and turn
yellow
14
In a mixed load of textile and metal goods, the textile packs should be placed
on the top rack
15
for sterilization, these sets MUST BE positioned on their sides
basin sets
16
stacking of rigid sterilization containers on the autoclave rack is permitted when
the manufacturer provides technical data showing that it is acceptable
17
what is used to verify that the steam sterilizer air removal mechanism is functioning properly?
Bowie dick test
18
which of the following monitoring methods verifies that conditions within the load were adequate to kill bacterial sores?
biological
19
what is the correct actuon to take if a written item needs to be corrected or removed from the sterilization load record?
draw a line through the item and initial
20
the Bowie dick test is considered which type of monitoring process?
chemical
21
An integrating indicator is under which class
class 5
22
which of the following microorganisms is used to biologically monitor the steam sterilizer?
geobacillus stearithermophilus
23
special medication/solution can only be processed in
gravity displacement liquid cycle
24
which of the following is recommended sterilizer setting for the Bowie dick test?
3 to 3 1/2 mins at 270F (132C) dynamic air removal
25
generally, if a biological test is performed daily, how often is it necessary to incubate a control biological indicator?
once a day and if a new lot number is used
26
a biological indicator monitors all loads containing
implantable devices
27
for testing of rigid sterilization containers, the biological indicators should be placed
as recommended by the manufacturer of the container
28
contamination of sterilized packs is most likely to occur
within the first hour after sterilization
29
items being unloaded from the steam sterilizer should be handled with
clean hands
30
a loaner instrument has been contaminated during a procedure and the operating room wants to sterilize it in the immediate use steam sterilizer. which of the following is the first step to take?
consult the manufacturers written instructions for approved sterilization methods and parameters
31
air and steam both exit through
chamber drain line
32
what are the two cycles in a steam sterilizer?
dynamic air removal and gravity displacement
33
exposure time, concentration, humidity, and temperature are the basic parameters of
100% ethylene oxide
34
humidity is critical to E.O penetration of what?
bacterial cells
35
the part of an ethylene oxide cycle when the sterilizer chamber is held at the specified temperature, concentration and time is called
exposure
36
E.O. kill’s microorganisms by
alkylation
37
generally, the ethylene oxide process challenge device (biological test pack) is placed in the
geometric center of the load
38
AAMI recommends tajy rigid sterilization containers be biologically tested before purchase and annually to verify that the
sterilizer is able to sterilize the contents
39
during qualification testing of steam sterilizers, when should the BI PCD tests be performed?
before the Bowie dick tests
40
routine maintenance of sterilizers should be done
on a regular basis according to M.I
41
the parameters for low temperature gas plasma sterilization are
time,temperature,and hydrogen peroxide gas plasma
42
which of the following microorganisms is used to biologically monitor the low-temperature gas plasma sterilizer?
geobacillus stearothermophilus
43
a low temp gas plasma sterilized temp varies from
113F-131F
44
which of the following microorganisms is used to biologically monitor the ozone sterilizer?
geobacillus stearothermophilus
45
aluminum foil is the package of the choice for which sterilizer
dry heat
46
which of the following microorganisms is used to biologically monitor the dry heat sterilizer?
bacillus atrophaeus
47
how many spores does a vial of a biological indicator have?
100000
48
what is the temperature range for the incubation of a biological indicator for steam sterilization?
131F-140F
49
in the event of a positive BI, how many loads should be recalled?
all loads back to the last negative BI
50
steam sterilization occurs by a process called:
condensation
51
a positive BI shows that the sterilization process:
did not kill all the test spores
52
I’m a steam sterilizer, how much space should be between the chamber wall and packs
1 inch
53
which must sterilized with an accompanying BI?
total hip replacement
54
all are typical aeration time and temps in E.O. sterilized devices EXPECT:
12 hours @125F
55
which of the following best describes the minimum exposure time, temperature and pressure for pre-vacuum sterilization of wrapped items?
4 mins, 270F, 28-30psi
56
chemical indicator of choice for low temp gas plasma is:
none of the above
57
microbial kill by oxidation is associated with which sterilization method?
all the above
58
AAMI now recommends the orthopedic sets weigh no more than:
25lbs
59
a pre vacuum cycle gave a print out as follows: 4 mins. at 270F, 28-30psi, what do you do the load?
release the load for use
60
Loa tempature gas plasma sterilization uses liquid hydrogen peroxide at what concentration
59%
61
which is an example of physical monitoring?
print outs
62
a wrapped set of instruments to be sterilized must at least:
2 chemical indicators
63
which sterilization method only has three phases of conditioning, sterilization, and aeration?
LTHP
64
most common cause of sterilization failures are due to:
human error
65
a multi variable indicator is also known as what class?
class 4
66
drains in both pre-vac and gravity displacement sterilizers are places at the bottom front of the sterilizer:
because air tends concentrate at the bottom of the chamber
67
the purpose of pre-conditioning a steam load is to:
reduce the amount of condensate that forms
68
flexible endoscope, implants, and a women textiles are incompatible with
ozone
69
osha does not permit more than one days supply of 100% EO cartridges stored in the department to exceed this number:
12
70
steam pressure entering the sterilizer is recommended at a range of:
60-80psi
71
which spore is used to biologically monitor ethylene oxide?
bacillus atrophaeus
72
the most unique feature of a chemical integrator is it’s ability to:
perform in parallel to a BI
73
time and temperature are parameters for
dry heat
74
what is the correct sterilizer-setting for the dynamic air removal test?
3 1/2 -4 mins, 270F pre vac
75
To reduce the potential for contamination packs, removed from the sterilization should be allowed to cool for how long?
30-120mins
76
sterilization printouts must be signed:
at the end of each cycle
77
which wrapping material should be used for LTGP sterilization?
all plastic pouches
78
special chemical indicators for LTGP change color:
from red to yellow
79
which sterilization process kills by diffusion?
LTGP
80
a control bi is used to verify which of the following?
all of the above
81
which of the following does not affect drying time in a steam sterilizer?
exposure time
82
using an infrared thermometer, a pack gave a reading of 75F, what do you do with the pack?
remove from the sterilizer cart
83
the parameters for LTHP are:
time, temp, and hydrogen peroxide concentration
84
in the anatomy of steam sterilizer, what is surrounding the internal chamber?
sterilizer jacket
85
the spore geobacillus stearothermophilus is used in biological indicators to test efficiency of sterilization methods expect
ethylene oxide
86
what percent of relative dryness should the incoming steam be?
97%-100%
87
when handling ethylene oxide full cartridges, personnel should NOT wear:
latex gloves
88
In the LTGP, the most effective sterilized performance is achieved when the load contains?
a mixture of metal and plastics
89
what are the 2 basic types of sterilization cycles in dry heat?
condensation and moisture
90
the following medical devices are incompatible with ozone sterilizers:
all of the above
91
it is necessary to perform a sterilizer qualification testing, expect
monthly
92
a clogged drain line in the steam sterilizer can contribute to:
all of the above
93
which phase of the sterilization cycle in LTGP does the chamber return to atmospheric pressure if h2o2 vapor is driven into the devices to inactive microorganisms?
diffusion
94
in low temperature hydrogen peroxide, when the chemical indicator is unprocessed and not exposed to h2o2; what color should it show?
purple
95
which sterilization method recommended a the use of an assembled BI CPD which is consist of a BI placed inside a catheter tipped syringe and a sterilizer specific CI placed inside a sealed sterilization pouch?
ozone
96
when performing the routine Maintenance and cleaning of the steam sterilizers, what are the 2 most important parts to check?
drain line basket and the door gasket
97
what term is used to describe the most difficult to sterilize tray that is representative from each family of instruments sets that is used for product testing?
master product
98
what phase of LTGP does the radiofrequency energy ionizes the h2o2 creations gas plasma that then recombines to form oxygen and water when the power is turned off?
plasma
99
ethylene oxide is regulated by these agencies EXOECT for:
CDC
100
what is the sterility assurance level for sterilizers?
99