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Test 2 Part II Intro Flashcards | StudBud
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Test 2 Part II Intro
What is positive beam limitation (PBL)?
What is ALARA?
Test 2 Part II Intro
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1
What is ALARA?
As Low As Recognizably Attempted
As Low As Reasonably Achievable
As Less As Reasonably Achievable
As Low As Reasonably Accountable
2
What is positive beam limitation (PBL)?
When the collimation operates automatically
When a filter is used
When manual collimation is used
When a lead skirt is on the fluoro tower
3
What is remnant radiation?
radiation coming from the patient’s body
x-radiation exiting from the window of the tube
x-radiation exiting through the patient to the IR
radiation emitted through tube housing
4
Dynamic display of a patient's anatomy is known as?
radiography.
tomosynthesis.
image intensification.
fluoroscopy.
5
in which of the following xray interactions with matter is the energy of the incident photon partially absorbed?
photoelectric
coherent
compton
pair production
6
Continuous Quality Improvement (CQI) is used to
predicts
plans (analyzes)
prevents
promotes
7
What is also known as "automatic collimation"?
positive beam limitation
negative beam limitation
cropping
post processing
8
Protective devices such as lead aprons are intended to protect the user from _____ radiation
Compton scatter, primary, remnant, and bremsstrahlung
Compton scatter, remnant, and bremsstrahlung
Compton scatter
Compton scatter, primary, and bremsstrahlung
9
A general radiographic imaging system consists of which essential components?
image receptor, collimator, x-ray tube, tube support, table, generator
table grips, x-ray tube, collimator, table, upright bucky
side markers, control console, upright bucky, table, collimator
control console, x-ray tube, tube support, collimator, table, upright bucky
10
Where should your dosimeter be worn?
Outside your gown at hip level
Inside your gown at neck level
Inside your gown at chest level
Outside your gown at neck level
11
The most popular and common form of assessing occupational radiation exposure.
the OSL dosimeter (Luxel).
frequent blood specimens to check for changes in leukocytes.
use of an area survey meter to measure the real-time presence of radiation.
a film badge assessed using a direct ion storage (DIS) dosimeter.
12
In which of the following x-ray interactions with matter is the energy of the incident photon absorbed?
Characteristic interactions
Bremsstrahlung interactions
Compton Scattering
Photoelectric absorption
13
The human resources department is responsible for
Writing paychecks and accounting
Attracting and Retaining quality employees
Safety coordination
overseeing quality assurance
14
What is an organizational chart?
Shows the supervisory structure and reporting relationships
Where things go in the stock room
States who is who in the company
Directions on how to get to work
15
The quality of xray photons is affected by?
focal spot size
time
kVp
collimation
16
Rapidly dividing cells are more radiosensitive:
False
True
17
The two main categories to express digital image quality are image resolution and
temporal resolution.
image signal.
source image distance.
scanning frequency.
18
Who establishes dose limits for radiation workers?
Americran Registry of Radiologic Technologists (ARRT)
The hospital administration
World Health Organization (WHO)
National Council on Radiation Protection and Measurements (NCRP)
19
What does a Geiger Counter measure?
Blood Pressure
Seismic Activity
Radiation
Seizure Activity
20
Understanding the organizational structure of a hospital is important due to chain of command.
True
False
21
Continuous Quality Improvement is....
founded on the ideals of string theory.
an ongoing process
only a concept used in the business world.
quick and easy
22
The x-ray tube component that stops the stream of electrons & produces the x-ray beam
Cathode.
Anode.
Positode.
Tetrode.
23
The dose equivalent limits for radiation workers are based on the radiation received from what source(s)?
general population exposure
background radiation
occupational exposure
medical & dental radiography
24
A material commonly used for radiation protection is
molybedenum
copper
lead
silver
25
What is an example of a radiopaque structure?
Esophagus
Bone
Lung tissue
Blood
26
The intentional use of tube angles is referred to as
minification
size distortion
shape distortion
magnification
27
The quantity of xrays is proportional to:
OID
phototimer
kvp
mAs
28
During a radiographic exposure, the largest percentage of this electrical energy is converted to
Mechanical energy
X-radiation
Thermal energy (heat)
X-ray photons
29
Bowel gas is an example of:
Negative contrast
Positive contrast
30
APR (Anatomical Programmed Radiography) is what?
Preselected techniques per exam
Matrix Size and Processing Power
31
Chest radiographs and upright abdominal studies are conveniently performed using a(n):
tilting radiographic table
interventional C-arm system with a fixed SID
variable height table
upright cassette holder and Bucky
32
A typical organizational structure of a hospital will have the hospital’s CEO reporting to the
President
Board of Directors
City Council
Chief Medical Officer
33
The negative side of the xray tube is called the ________.
anode
cathode
filament
rotor
34
The hospital mission statement -
defines the purpose of the hospital
Personnel are responsible for knowing the mission and goals
All of the above
All hospital staff are committed to accomplishment of the Mission.
35
Component that intercepts remnant radiation & creates an image:
grid
collimator
image receptor
table top
