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WorksheetsRadiology Review Exam 1
Total questions: 69
Worksheet time: 52mins
In what view is an animal placed ventrally?
LAT.
V-D.
D-V.
AP.
The dosimeter measures:
sound waves.
endoscope waves.
radiation exposure.
ultrasonic exposure.
Lead aprons, gloves, and shields are personal protective equipment needed when using:
radiography.
endoscopy.
ultrasound diagnostics.
sound waves.
Number of x-ray beams passed in a time is:
mA.
kVp.
LAT.
AP.
Information that must be on X-ray label includes the following:
clinic information
clinic information, vet, client/patient name, date
patient information
patient and clinic information
What is a dosimeter, or X-ray badge used for?
identify the person taking the X-ray
identify those approved to take X-rays
measure the amount of radiation a person is exposed to
protect a person from radiation exposure
Device or instrument used to measure the thickness of a body part for an X-ray
Calipers
Dosimeter
Grid
X-ray tube
Secondary radiation that occurs when the beam intercepts an object
Kvp
MAS
Radiation
Scatter radiation
What position is this patient in?
dorsal ventral
left lateral recumbency
right lateral recumbency
ventral dorsal
What position is this patient in?
dorsal-ventral (D-V)
left lateral
right lateral
ventral-dorsal (V-D)
What is the minimum distance you should be from the x-ray table to achieve ALARA?
3 feet
It doesn't matter if your wearing PPE
6 feet
12 feet
An effect that occurs when the exposure switch is closed is called?
Thermionic Emission
Current Boosting
Stator Closure
Tube Flex
What is housed in the x-ray tube?
Anode
Cathode
Anode and Cathode
Generator
What type of radiation causes film fog?
Primary Beam
Scatter Radiation
Too high kVp
Too low mAs
The scientist that discovered x-rays
Roentgen
Einstein
Curie
Tesla
In the production of x-rays, what is the percentage of heat produced?
100%
1%
5%
99%
What is a particle of energy when referring to radiation?
Photon
Proton
Electron
Current
What would you expect to see if your kVp setting was too high?
Too dark/Overpenetrated
Too Light/Overpenetrated
Too dark/Underexposed
Too Light/Underexposed
Which of the following are true in regards to X-rays?
Invisible and electrically charged
Invisible and cause biological damage to living tissue
Invisible and focused through a lens
Visible and travel in a straight line
Imaging Plates in CR or DR have a single intensifying screen.
True
False
The term Palmar refers to
The cranial aspect of the front limb
The caudal aspect of the hindlimb
The caudal aspect of the frontlimb
The caudal aspect of your hand
PPE protects you from which radiation?
Primary Beam
Scatter Radiation
Heat Bloom
A personal dosimeter should be assigned to one individual:
If that person works in two locations, can be worn at both
Should be worn at the wrist
May be stored in the x-ray room close to patients
Must only be worn in one location and stored at that site
What is the filament in the cathode made of?
Thoriated tungsten
Molybdenum
Copper
Tungsten Alginate
Every health care worker who assists with an x-ray procedure
may be given the leaded apron and gloves
must be provided with appropriate and correct protection
must be given instructions in writing to ensure compliance
may not need protection if he or she is within 10 feet of the source
Three cardinal rules for radiation protection
time, protection, exposure
time, PPE, kVp
time, distance, ↓ kVp
time, distance, shielding
The ALARA concept is used to protect who?
The general public
The technologist
The patient
The veterinary staff
Linear energy transfer defines
The rate of travel of an atom when it produces radiation
The amount of energy imparted to the target of an x-ray unit
The amount of energy transferred during a radiograph
High and low levels of energy of the patient during diagnosis
Transmitted photons
travel through the body in a uniform pattern
are emitted from the body as scattered radiation
carry an image of the tissue through which they have passed
are absorbed more in bones than they are in tissue
The care of leaded aprons should include
laying the aprons on a flat surface
folding the aprons when not in use
hanging them by the shoulders with no folds or creases
cleaning the surfaces with strong solvents
The inverse square law
discusses the relationship between intensity of radiation from the source and distance of the object from the source
is practical only with visible light
is useful only with high energy photons
concerns the use of binding energy calculation
Long wavelengths are associated with
low frequency, limited power
low frequency, high power
high frequency, limited power
high frequency, high power
The American College of Veterinary Radiology
establishes technique charts to be used for each body part
is responsible for the directional terms used for imaging
monitors radiation exposure among veterinary professionals
works with OSHA to develop occupational safety warnings
What is the abbreviation for dorsoplantar
DPa
Pl
DPl
PlD
What is the abbreviation for dorsoventral?
DV
VD
DP
DD
Which of the following is not associated with high contrast film?
short scale contrast
low kV
Few differences in density
many gray densities
Contrast on a radiographic image is most dependent on what factor?
The penetrating power of x-ray beam
The atomic number of the target
An increase or decrease in milliamperage and time
The differences in tissue density
Grids should be
described in terms of their ratio only
used for every examination
as high a ratio as possible to reduce dose
used to absorb scattered radiation
kVp contributes mainly to
Contrast
resolution
dose
density
mAs contributes mainly to
contrast
resolution
dose
density
Remnant radiation is the
radiation that exits the patient
particulate radiation absorbed by the filter
radiation that does not pass through the body
radiation that is absorbed by the grid
Which is not 1 of the 12 properties of X-rays?
X-rays are neutral
X-rays cause secondary and scattered radiation
X-rays are uniform throughout
X-rays are highly penetrable
Quality is the penetrating power of the X-ray beam.
True
False
The focusing cup on the cathode
is positively charged
rotates
directs the electrons to the target anode
is the main location of thermionic emission
In computerized radiography
The computer automatically accepts or rejects the image
An imaging plate replaces the conventional cassette
The imaging plate is permanently contained within the tabletop
The phosphor used is the same as conventional radiography
Computerized radiography denotes a
method of imaging using a photostimulable phosphor
computerized storage mechanism
better way to store images produced on film
method of imaging using a pentium processor
In Digital Imaging
The image is always acquired by a fan beam
The image receptor plate can be replaced at a reasonable cost
The cassettes need to be flashed if not used regularly
Eliminates all processing steps
How would you achieve shorter time during an exposure?
Increase mA
Increase kVp
decrease kVp
decrease mA
Which is not one of the three major directional axes through the body?
cranioventral
dorsoplamar/dorsoplantar
mediolateral
craniocaudal
How should an image be positioned to properly view a lateral radiograph?
Cranial part of pt points up, left side on your right
Cranial part of pt is to your left
Proximal end of extremity at top of view
Positioned as if you are going to shake the patient's paw
A patient lying on it's back, with a beam entering the abdomen and exiting the back is what view?
DV
VD
CrDc
AbD
You are taking a lateral image of an injured animal and you need a second orthogonal view. Which would be best if further positioning would cause too much stress to your patient.
Horizontal beam radiograph in lateral recumbency
No more radiographs
VD view with patient in dorsal recumbency
A second lateral image of the opposite side
Which is not true of tabletop technique?
Image receptor should be collimated to 1/2 being radiographed at that moment
Using a nonslip pad under the cassette will obscure the exposed half of the image
You should divide the image receptor to allow more than one view on the cassette
A lead sheet should be put over half the cassette during imaging
For pelvic limbs, what is used to designate the area distal to and including the tarsus?
Di
DPa
DP
DPl
Directional terms (left/right) should be placed first when used in combination with other terms.
False
True
What is the term added to views in which the central ray does not pass through parallel to one of the major directional axes?
Medial
Cranial
Oblique
Distal
Oblique views are generally taken with which body part?
Thorax
Abdomen
Limbs
Pelvis
Which should be completed before exposing patient to x-ray?
Measuring the patient
Positioning the cassette
Inserting technical factors
all the above
Grid Ratio is described as
The height of the lead strips compared with their density
The height of the lead strips compared with their width
The height of the lead strips compared with the distance between them
The height of the lead strips compared with their thickness
The most common filter we use
Is attached to the collimator
Is copper
Is located in the collimator (inherent filtration)
contributes significantly to the dose of the patient
What is used to remove low energy radiation?
Grids
Imaging Plate
Filters
Lead
Filtration of the x-ray beam
reduces effect of milliamperage
reduces dose to patient
enhances the pair production effect
determines the final contrast of the image
Intensifying screens are responsible for
Contrast
Resolution
Latitude
Density
The correct use of the Anode Heel Effect
Positioning the thickest part toward the anode
Positioning the thickest part toward the cathode
Positioning animal on its right side with the heels closest to the central ray
Using a grid to prevent scatter radiation
What is a main concern when taking radiographs?
Patient safety
Your safety
Patient comfort
All the above
Radiation is in which portion of the light spectrum?
bottom of the scale
middle of the scale
top of the scale
visible light area
What kind of circuit is needed to generate the x-ray beam?
Closed
Square
Open
Triangle
The X-ray beam contains
all monochromatic energies
multiple photon energies
mostly gamma rays
all alpha and beta energies
What one thing will get you an automatic 0 on your radiographic evaluations in this class?
If Ms. Floyd is in a bad mood
If Shawn hears you step on the peddle
If you have a body part or lead glove in the film
If your patient urinates on the table
