A decrease in beam filtration will have what effect on radiographic image contrast?

radiographic image contrast will increase

Select the type of grid device with the greatest amount of positioning latitude.

12:1, 80 line/inch, focused grid

Identify the pathology demonstrated below:

subluxation of the proximal interphalangeal joint

Evaluation criteria for an AP projection of the abdomen should include all of the following except:

lesser trochanters of the femur at the lower edge of the film

The greater tuberacle is best demonstrated in profile laterally in which projection?

AP projection with external rotation

Why is it important for a patient to have their knees flexed for an AP projection of the lumbar spine?

to reduce the lordotic curvature of the L spine and open the joint spaces

Antiversion of the femoral neck is overcome by a ____ when performing an AP projection of the pelvis.

15 - 20 degree internal rotation of the toes

What is the effect on relative biologic effectiveness (RBE) as linear energy transfer (LET) increases?

as LET increases, RBE increases

A PA skull projection image with the structures of the petrous pyramids completely filling the boney orbits, indicates

the orbitomeatal line and central ray perpendicular to the image

Where should cleaning of your equipment immediately following a portable chest radiograph on an isolation pt occur

in the corridor outside the patient's room

Which of the following occurs with interphase death?

the cell dies before leaving interphase

What is the primary function of setting a back-up time when making an exposure with an AEC or photo timed unit?

patient safety device in case of equipment malfunction

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Kettering Mock (Pt 1)

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Questions 100

Answers

1
All of the following are considered to be short-term somatic effects except:
Epistaxis
Epilation
Erythema
Cataracts
2
What is the term applied to radiation injuries that are limited to an exposed individual and the area of exposure only?
local somatic injuries
somatic injuries
generic injuries
general somatic effects
3
Exposure factors used to control radiographic contrast include the following:
Exposure Time
OID
MAS
KVP
4
A decrease in beam filtration will have what effect on radiographic image contrast?
radiographic image contrast will decrease
radiographic image contrast will remain constant
radiographic image contrast will vary directly with changes in beam filtrat
radiographic image contrast will increase
5
Select the type of grid device with the greatest amount of positioning latitude.
12:1 103 line/inch, focused grid
8:1 ratio, 80 line/inch, crosshatched grid
8:1 ratio, 80 line/inch, parallel grid
12:1, 80 line/inch, focused grid
6
An atom containing three protons and three neutrons in its nucleus has a (an)
mass number of twelve
atomic number of three
atomic number of six
mass number of three
7
What is the term associated with an object that once contaminated acts as the vehicle for an infection?
Vector
Pathogen
Fomite
Reservoir
8
Refer to image
2, 3
1, 2, 3
1
1, 2
9
Which flexure of the colon is demonstrated best in the right posterior oblique position during a lower GI media exam?
Sigmoid
Biliary
Hepatic
Splenic
10
Shape distortion produced on a finished radiograph will vary directly with which of the following factors?
focal spot selection
SID
OID
tube angulation
11
Identify the pathology demonstrated below:
subluxation of the metacarpal phalangeal joint
subluxation of the distal interphalangeal joint
subluxation of the inter condyloid process
subluxation of the proximal interphalangeal joint
12
An increase in kVp will _____ receptor exposure?
Increase
Decrease
Neither
None of the above
13
Which signifies high principles of professional behavior and a willingness by the profession to control its own conduct?
Laws
Code of Ethics
Regulations
Tort
14
Which law listed below states “a direct relationship is necessary to compensate for the changes in intensity and R.E.?
reciprocity law
compensation law
direct square law
inverse square law
15
Evaluation criteria for an AP projection of the abdomen should include all of the following except:
wings of the ilia should be symmetric
spinous processes should be in the center of the lumbar vertebra
vertebral column should be in the center of the radiograph
lesser trochanters of the femur at the lower edge of the film
16
Which of the following are used as image acquisition methods in digital radiography?
all of the above
flat panel detectors
thin film transistors
PSP plate with a charged coupled device (CCD)
17
The greater tuberacle is best demonstrated in profile laterally in which projection?
AP projection with external rotation
transthoracic lateral projection
AP projection with neutral rotation
AP projection with internal rotation
18
As the angle of the face of the anode increases from 5 degrees to 15 degrees, spatial resolution will:
Decrease
Increase
None of the above
Remain the same
19
The maximum variation between consecutive exposures when using the same technical factor is:
+ or - 20%
+ or - 5%
+ or - 15%
+ or - 10%
20
Why is it important for a patient to have their knees flexed for an AP projection of the lumbar spine?
aids in assuring the patient will take in a deep inspiration
to decrease lateral bending of the lumbar spine
to reduce the lordotic curvature of the L spine and open the joint spaces
to overcome the antiversion of the femoral necks
21
What will be the effect on radiographic contrast when the radiation field size is changed from a 14"x17" to 8"x10"?
contrast will increase
contrast will vary directly with changes in field size
contrast will decrease
contrast will remain the same
22
Which of the following carpal bones of the wrist is the largest?
Scaphoid
Lunate
Capitate
Pisiform
23
Antiversion of the femoral neck is overcome by a ____ when performing an AP projection of the pelvis.
10 - 12 degree external rotation of the toes
15 - 20 degree external rotation of the toes
15 - 20 degree internal rotation of the toes
10 - 12 degree internal rotation of the toes
24
Radiation induced thyroid cancer exhibits which of the following dose response relationships?
linear, threshold
nonlinear, threshold
linear, non-threshold
nonlinear, non-threshold
25
What is the effect on relative biologic effectiveness (RBE) as linear energy transfer (LET) increases?
as LET increases, RBE increases
as LET increases, RBE decreases
LET does not affect RBE
as LET increases, RBE stabilizes
26
A PA skull projection image with the structures of the petrous pyramids completely filling the boney orbits, indicates
the orbitomeatal line and central ray perpendicular to the image
the infraorbitomeatal line and central ray perpendicular to the image
the IOML is perpendicular to the image and central ray is 20 degrees caudal
the OML is perpendicular to the image and central ray is 15 degrees caudal
27
Where in the X-ray circuit can the mA selector be found?
the secondary high voltage circuit
the resistance circuit
the filament circuit
the primary low voltage circuit
28
Where should cleaning of your equipment immediately following a portable chest radiograph on an isolation pt occur
in the corridor outside the patient's room
in the patient's room
in the main radiology department
in the darkroom
29
What type of fracture is illustrated below?
Greenstick
Avulsion
Comminuted
Compound
30
A decrease in SID will create:
size distortion
elongation
foreshortening
shape distortion
31
In digital imaging, receptor exposure is controlled by adjusting:
Window Level
Pixel Pitch
Window Width
Matrix
32
What is the cumulative lifetime dose limit for a technologist two days past their 37th birthday?
50 mSv
5 mSv
970 mSv
370 mSv
33
Refer to image
1
3, 4
2, 3
1, 2, 4
34
Refer to Picture
1 & 4
1 Only
1, 3, & 4
2 & 3
35
Refer to image
fixed inherent filtration
positive beam limitation
a two button exposure switch
tube carriages with detents at a 40" source to image distance
36
Which of the following occurs with interphase death?
the cell dies in between mitotic phases
the organism dies
the cell dies prior to interphase
the cell dies before leaving interphase
37
The "Cycle of Infection" includes: a susceptible host, a means of transmission, a pathogenic organism, and:
a reservoir of infection
an extended exposure
a depressed immune system
a contact opportunity
38
Refer to image
a high melting point
a focusing of electrons
a rotating anode
a negatively charged target
39
At what period during a cell's life cycle will the cell be at its highest point of radiosensitivity?
G2
Synthesis
Mitosis
G1
40
Prior to inserting an enema tip into a patient, the technologist should place the patient in the _______ position.
Fowler
Sim's
Holmblad
Trendelenburg
41
Refer to image
DICOM
HIS
RIS
HL-7
42
A patient is being evaluated for an accumulation of fluid, which side must be demonstrated with the patient in LLD
Posterior
Left
Anterior
Right
43
The violet light emitted by the PSP is transformed into the image seen on the CRT by which of the following:
helium neon laser
scanner/reader
analog to digital converter
photostimulable phosphor
44
What is the term applied to the blood pressure value when the heart is at "rest"?
patent blood pressure
systolic blood pressure
diastolic blood pressure
occult blood pressure
45
The common contrast media agent term "Barium" is actually made up of what compound?
Barium Sulfate
Barium carbonate
Barium Sulfite
Barium platinocianide
46
What test is used to determine if you're experiencing rectifier failure of a single phase full wave rectified X-ray unit
modulation transfer function test
spinning top test
peak kVp evaluation
synchronous spinning top test
47
The "eye" of the Scotty Dog on an oblique lumbar spine is the:
transverse process
pedicle
superior facet
lamina
48
What is the primary function of setting a back-up time when making an exposure with an AEC or photo timed unit?
patient safety device in case of equipment malfunction
to determine the minimum duration of the exposure
to assume optimum radiographic density
to determine the milliampere seconds value for the exposure
49
A threshold dose-response relationship is seen in which of the following types of radiation-induced cancers?
Lung
Bone
Skin
Breast
50
The central ray is directed to a point 5 cm (2") distal to the ___ when performing an AP projection of the scapula.
Acromion
Coracoid Process
AC Joint
Coronoid Process
51
At what angle from the pt will a technologist receive the least exposure?
45
15
90
180
52
Refer to image
the same as
Lower than
not affected by
Higher than
53
All of the following components are the X-ray circuit are found on the primary, low voltage section except:
exposure timer
primary coil of the step-up transformer
autotransformer
secondary coil of the step-up transformer
54
Refer to image
3
1 & 2
2 & 4
1
55
Imaging of ribs below the diaphragm is done on what phase of respiration?
inspiration the elevate the diaphragm
expiration to elevate the diaphragm
inspiration to depress the diaphragm
expiration to depress the diaphragm
56
Refer to image
16 kV
16 V
40 kV
40 V
57
Refer to image
general somatic effect
generic effect
nonthreshold effect
local somatic effect
58
Which of the following exposure factor combinations will result in the least amount of radiation dose to the patient?
Low KV, Low MAS
High KV, Low MAS
High KV, High MAS
Low KV, High MAS
59
Refer to image
1.75 mm Al equivalent
2.5 mm Al equivalent
2.0 mm Al equivalent
1.50 mm Al equivalent
60
Which of the following emergency medications may be used on a patient experiencing a seizure?
Adenocard
Dobutrex
Benadryl
Dilantin
61
Secondary barriers must contain a minimum thickness of _________ Pb equivalent.
0.5 mm
0.25 mm
1/32 inches
1/16 inches
62
Which of the following interactions with matter reduce contrast in an x-ray image?
coherent scattering
characteristic
compton scattering
photoelectric effect
63
What is the single best predictor of a probable reaction to the injection of an iodinated contrast media?
a history of an asthmatic condition
sensitivity to shell fish
ethnic origin
a history of a previous allergic reaction
64
How frequently should a radiographer wash their hands during a working day?
before and after each patient exam
hourly
only if hands come in contact with a patient's body fluids
two to three times per day
65
What should be the technologist's first response upon discovering a fire has broken out in a patient holding area?
evacuate any patients from the area
call "Code RED"
try to put the fire out
close all doors leading into the area
66
Refer to image
71 150 2.0 mm 48” 0.30 16:1
71 1000 1.0 mm 48” 0.002 12:1
70 200 1.5 mm 36" 0.10 12:1
73 500 2.0 mm 40” 0.20 12:1
67
The bucky slot cover of a fluoroscopic unit must provide a minimum lead equivalent absorption equal to ___mm of lead.
0.35
1
0.25
0.50
68
Refer to image
1/16" of lead equivalent shielding
1/8” of lead equivalent shielding
1/32" of aluminum equivalent shielding
1/16" of aluminum shielding
69
What effect does scatter radiation have on radiographic contrast?
scatter radiation has no effect on radiographic contrast
scatter radiation will increase radiographic contrast
scatter radiation will decrease radiographic contrast
none of the above
70
What's the function of the flat panel thin film transistor detectors (FDP/TFT) when using direct method to produce image
Convert x-rays to light
Converts electrons to light
Convert light to electrons
Convert x-rays to electrons
71
The NCRP requires that the exposure switch controlling the fluoroscopic beam be of what type?
phase linear type
ballistic type
serial type
deadman type
72
The greatest spatial resolution will be seen with which of the following image matrix sizes?
2,048 x 2,048
1,089 x 1,089
128 x 128
512 x 512
73
Refer to image
3
1, 2
1, 3
2
74
Refer to image
AP erect
right posterior oblique
right anterior oblique
left posterior oblique
75
Which of the following is best demonstrated on a lateral projection of the elbow?
Acromion
Coronoid Process
Radial Heard
olecranon and olecranon process
76
rom anatomical position, pronating the hand will result in the palm facing ____.
Lateral
Posterior
Anterior
Medial
77
What is the medical term applied to local skin redness following a significant exposure to ionizing radiation?
Epilation
Ulceration
Erythema
Sunburn
78
A "bluish" coloration of the lips, lining of the mouth or nail beds is a symptom of:
Hypoxia
Insulin Shock
Leukemia
Cyanosis
79
The ischial spine is labeled:
A
C
F
D
80
The positioning landmark located at the base of the nasal spine
Nasion
Gonian
Glabella
Acanathion
81
When Bremsstrahlung radiation is produced the incident electron:
is deflected with a loss in energy
is deflected with an increase in energy
Ejects an outer shell tungsten electron
Ejects an inner shell tungsten electron
82
A patient is being scheduled for a series of radiographic examinations. Select the most preferred sequence of exams
KUB, UGI, BE, IVU
KUB, IVU, BE, UGI
KUB, BE, UGI, IVU
BE, UGI, IVU, KUB
83
An axial plantodorsal projection for the calcaneous is performed with the CR angled ___ degrees to the surface of the IR
35
60
40
50
84
The portion of the image intensifier device that is responsible for converting light photons into free electrons is the:
Photocathode
The electostatic lens
Input Phosphur
Anode
85
A bit depth of 9 will result in how many shades of gray?
81
212
512
940
86
Sterility of male pts due to excessive radiation exposure to the gonads is an example of what type of radiation effect
genetic
latent general
general somatic
local somatic
87
An image that demonstrates low contrast can be caused from: 1. High mAs 2. Low kVp 3. Insufficient beam restriction
2 & 3
1& 2
3 Only
1 Only
88
What units are radiation film badge reports for diagnostic radiographers stated in?
millilamberts
millicuries
millirem
millirads
89
In a Compton interaction with matter, photons interact with _______ shell electrons?
None of the Above
Intermediate
Inner
Outer
90
What term is used for the level of medical asepsis that involves the destruction of pathogens using chemical materials?
surgical asepsis
disinfection
microbial defraction
sterilization
91
Which of the following are mapped by a look-up-table?
image gray scale values
latent images
anatomic thickness
subject density
92
Refer to image
4800 photons/unit area
20400 photons/unit area
300 photons/unit area
19200 photons/unit area
93
Refer to image
30 degrees caudad
30 degrees cephalad
37 degrees caudad
perpendicular to the image
94
Which of the following is an accepted standard for networking medical devices to exchange images and information
RIS
DICOM
WAN
PACS
95
With increasing levels of beam filtration where will the greatest dose savings be realized?
in the initial layers of tissue struck by the beam
in tissues at the exit surface of the patient
in tissues at the midline
at the level of the patient's gonads
96
What is the unit of measurement for calibrating the "resolution" of an imaging system?
modulation quotient
line pairs/millimeter
pinhole camera
grid ratio
97
Where does the CR enter for a PA projection of a hand?
3rd MPJ
3rd PIP
Head of 3rd MC
3rd DIP
98
Which change in technical factors below will result in the greatest reduction in dose to the patient?
changes from a 40" source to image distance to 36"
change from 300 mA and 3/10 seconds to 500 mA and 2/10 seconds
change field size from 14"x17" to 8"x10"
change from 70 kVp and 40 mAs to 80 kVp and 20 mAs
99
Which of the following anatomic structures is best demonstrated in the LAO position while performing a BE?
Ileocecal Valve
Sigmoid Colon
Splenic Flexure
Hepatic Flexure
100
In order to keep the line of gravity close to the center of gravity when carrying a load of cassettes down a long hallwa
hold the cassettes in one arm
keep the arms extended
keep the load close to the body
hold the cassettes on your shoulder

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