Applications for fluoroscopy are:

Real-time imaging of orthopedic surgery and function of the GI system

Which of the following regarding mA is FALSE?

An increase in mA will result in a decrease in density of the film

Which of the following statements regarding exotics radiography is FALSE?

Long exposure times to minimize motion artifacts

Which of the following regarding nonionic iodine contrast is TRUE?

Does not dissociate so causes fewer adverse reactions

The value of fluoroscopy during surgery:

Providesa functional view of the internal organs

Hip dysplasia is suspected. You have been asked to take a VD hip extended view of his pelvis. Where will you measure?

At the thickest part of the pelvis

During the nuclear medicine procedure, the equine patient:

Standsquietly while its body emits radioactive signals

In an Upper GI contrast study, when should radiographic images be taken?

Immediately then, 15, 30 and 60 minutes after administration

Which of the following is the correct order of the steps involved in manual film processing?

Developing, rinsing, fixing, washing, drying

Which of the following is FALSE regarding PennHIP radiographs?

Measures the level of hip dysplasia

The 3 big tenets of radiation safety are:

Minimum time, maximum distance, maximum shielding

Which of the following regarding contrast studies is TRUE?

Positive contrast appears radiopaque on radiographs

What is meant by the term “half-life”?

The time taken for half of the radioactive atoms to decay into stable form

During fluoroscopy, the image on the intensifier screens:

Is enhanced when the human eye is correctly dark adapted

What are the two basic types of digital dental radiography?

Computed radiography and direct digital radiography

What is the main purpose of the developer?

Reduce exposed silver halide crystals to black metallic silver

What is a T1-weighted magnetic resonance image?

An image on which fat appears white

The fluoroscopic system functions the same way as:

The x-ray tube and detector in radiography

Why is the word resonance used in the term MRI?

It is how the atom's magnetic fields respond to a radio frequency

Which of the following regarding CT and MRI is TRUE?

Both CT and MRI require general anesthesia

One purpose of the gain control setting is:

To control the brightness level of an image

What is the purpose of the time-gain-compensation slider on the ultrasound machine?

Controls brightness in different depths of an organ

Which of the following is FALSE regarding endoscopy?

There is only one channel in the endoscopic instrument

Which best describes the appearance of a hyperechoic lesion on ultrasound?

Brighter than surrounding tissue

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Radiography/Dx imaging VTNE Prep

96 termsStudBud Administration38 plays

*Duplicate of Diagnostic Imaging VTNE Prep * Sheridan college radiology review and VTNE practice. will add more questions when needed

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Questions 96

Answers

1
Applications for fluoroscopy are:
Contrast images of internal organs in real timeconverted from ultrasound
Static extremity and pelvic images with contrast during surgery
Real-time images of archived radiographs converted from the films
Real-time imaging of orthopedic surgery and function of the GI system
2
In which exotics species is fasting preferred?
Birds
Reptiles
Rabbits
Guinea Pigs
3
Which of the following regarding mA is FALSE?
Adjusting the mA determines the number of electrons that will flow
An increase in mA will result in an increase in darkness of the film
mA regulates the number of electrons used to produce xray photons
An increase in mA will result in a decrease in density of the film
4
Which of the following statements regarding exotics radiography is FALSE?
Long exposure times to minimize motion artifacts
Horizontal beam is used for lateral views of reptiles
Usually no measuring of the patient
2 orthogonal views are recommended
5
Which of the following regarding nonionic iodine contrast is TRUE?
Can cause more adverse reactions than ionic iodine
Does not dissociate so causes fewer adverse reactions
Dissociates into two ions
Draws fluid into organs if given orally
6
Why do negative contrast mediums appear black on radiographs?
They only absorb x-rays of a particular wavelength
The premise is false
They have decreased solubility so reflect x-rays
No x-rays are absorbed by them
7
In an ultrasound image, what gives the contrast between pixels in the image?
Acoustic impedence
Acoustic shadowing
Acoustic depth
Acoustic enhancement
8
Which of the following views is the most common view for diagnosis of hip dysplasia?
VD hip extended
Frog leg
Lateral hip extended
VD flexed
9
The value of fluoroscopy during surgery:
Is useful because the patient is awake
Saves money by providingreal-time imaging
Saves time by providing on-the-spot images
Providesa functional view of the internal organs
10
During a CT, the technique that distorts the resolution of the anatomy above and below the region of interest is called:
Distorsion
Fuzz
Blink
Blur
11
Which of the following regarding the heel effect is TRUE?
The xray beam in more intense at the cathode side
The thickest part of the patient should be placed toward the cathode side
All of the above
It is related to the angle of the target area
12
For abdominal radiographs, exposure should be taken at peak inspiration.
False
True
13
Hip dysplasia is suspected. You have been asked to take a VD hip extended view of his pelvis. Where will you measure?
At the level of the pubis
At the greater trochanter
At the thickest part of the pelvis
At the level of L5
14
Which of the following is the correct dental formula for a feline?
3121/3131
2131/2141
3131/3121
3142/3143
15
The isotope that is most highly attracted to bone is:
Iodine-131
Uranium-133
Technetium-131
Technetium-99m
16
During the nuclear medicine procedure, the equine patient:
Is moved into several positions around thecamera
Standsquietly while its body emits radioactive signals
Is heavily sedated and usually does not react to the substance
Stands and waits until a burst of radioactiveactivity is complete
17
In an Upper GI contrast study, when should radiographic images be taken?
Immediately then, 10, 30, 45 minutes after administration
Immediately then, 30, 60 and 90 minutes after administration
Immediately then, 15, 30 and 60 minutes after administration
Immediately then 5, 10 and 15 minutes after administration
18
Which of the following controls the contrast on the radiograph?
SID
mAs
RAD
kV
19
For which atoms are MRI radio frequencies tuned to in order to create images?
Hydrogen
Oxygen
Helium
Carbon
20
Which of the following is the correct order of the steps involved in manual film processing?
Developing, rinsing, washing, fixing, drying
Developing, washing, fixing, rinsing, drying
Developing, washing, rinsing, fixing, drying
Developing, rinsing, fixing, washing, drying
21
Which of the following is FALSE regarding PennHIP radiographs?
Needs to be performed by a qualified and certified veterinarian
Measures hip joint laxity through stress radiographs
Used to determine the likelihood of a dog developing hip dysplasia
Measures the level of hip dysplasia
22
The 3 big tenets of radiation safety are:
Maximum time, maximum distance, maximum shielding
Minimum time, maximum distance, maximum shielding
Maximum time, minimum distance, maximum shielding
Minimum time, maximum distance, minimum shielding
23
What is the typical matrix used to show most CT scan images?
388
512
256
128
24
Which of the following regarding contrast studies is TRUE?
Positive contrast appears isoechoic on radiographs
Positive contrast appears radiopaque on radiographs
Positive contrast appears radiolucent on radiographs
Negative contrast appears hypoechoic on radiographs
25
The imaging modality that allows the vet to take rads throughout a fracture repair without leaving the OR is:
Fluoroscopy
Nuclear scintigraphy
CT
Endoscopy
26
What is meant by the term “half-life”?
The animal will only live half its life
The time taken for half of the radioactive atoms to decay into stable form
The time it takes for half of the animal radioactive treatment to finish
The time it takes for half of the radioactive atoms to be excreted
27
Which teeth in a canine mandibular arcade have 3 roots?
Premolar 4
None
Molar 1
Premolar 3
28
Which of the following is an example of positive contrast medium?
Iodine and air
Air and nitrous oxide
Barium and iodine
Barium and air
29
Which of the following is/are needed on any film being submitted for OFA evaluation?
Date radiographs were taken
Patient name/number
All of the above
Hospital or vet name
30
During fluoroscopy, the image on the intensifier screens:
Is immediately visible andclear to the human eye
Is clear when the image intensifier is warmed upcorrectly
Is dull and flat in a grainy black and white
Is enhanced when the human eye is correctly dark adapted
31
What are the two basic types of digital dental radiography?
Cassette digital and indirect digital radiography
Computed radiography and dental radiography
Computed radiography and direct digital radiography
Computed digital and direct digital radiography
32
What is the main purpose of the developer?
Remove unexposed, undeveloped silver halide crystals
Change the calcium tungstate crystals to black calcium
Create a latent image
Reduce exposed silver halide crystals to black metallic silver
33
During doppler ultrasound, a vessel appears blue. In which direction is the flow of blood in relation to the transducer?
Towards
Away
Neither
Both
34
Usually the skull is symmetrical and about the same width in lateral as in DV or VD.
True
False
35
A Hounsfield unit:
Compares the density value of a pixel with that of water
All of the above
Is a measurement of densityon a CT scan
Is also called a CT number
36
Positron emission technology uses radioisotopes that must be created with a machine called a:
Reactor
Scintillator
Camera
Cyclotron
37
What is a T1-weighted magnetic resonance image?
An MR image on which fatappears black
An image for which TR is 2000
An image on which fat appears white
An image on which CSF appears white
38
Which substance creates the greatest barrier to sound transmission?
Blood
Fluid
Bone
Tissue
39
The piezoelectric materials within a probe can:
Convert electrical energyinto mechanical energy and vice versa
All of the above
Convert electrical energy into mechanical energy
Convert mechanical energy into electrical energy
40
Tortuga, a 5-year-old M Russian tortoise presented for not eating. Which two radiographic views should be performed
DV and horizontal beam
VD and lateral
DV and lateral
VD and horizontal beam
41
Pyloric obstruction is suspected. Which position is most appropriate to place the patient in order to view the pylorus?
Left lateral
Right lateral
VD
DV
42
The fluoroscopic system functions the same way as:
A film/screen combination in radiography
The x-ray tube and detector in radiography
A detector in digital imaging
A light bulb and an x-ray tube
43
Why is the word resonance used in the term MRI?
It uses radio waves and they are musical
The atoms resonate to all of the radio waves
It is how the atom's magnetic fields respond to a radio frequency
Resonance comes from the term used in spectroscopy
44
The process by which photons are created by positrons colliding with electrons is called:
Annihilation
Bremsstrahlung
Decay
Fusion
45
Which of the following regarding CT and MRI is TRUE?
MRI measured the amount of radiation transmitted through the patient
Both CT and MRI are equally appropriate modalities for evaluating the lungs
Both CT and MRI require general anesthesia
CT measured hydrogen atoms
46
What is the beam restricting device?
Screen
Filter
Grid
Collimator
47
One purpose of the gain control setting is:
To select for continuous Doppler
To set the frequency of a probe
To control the brightness level of an image
To adjust the color intensity
48
Which method is the most common way to reconstruct CT scan images?
Fourier transformation
Filtered back-projection
Back-projection
Filtered optical transfer
49
What is the purpose of the time-gain-compensation slider on the ultrasound machine?
Narrows the width and improves resolution
Moves the focal point closer to the image
Controls brightness in different depths of an organ
Controls overall brightness
50
Which of the following is FALSE regarding endoscopy?
Fiber bundles provide a light source on the end of the instrument
There is only one channel in the endoscopic instrument
Video cameras can be attached to the endoscope for viewing on TV screen
Air is used for insufflation
51
Which best describes the appearance of a hyperechoic lesion on ultrasound?
Brighter than surrounding tissue
Darker than surrounding tissue
Dark shadowing
The same as surrounding tissue
52
Which of the following is FALSE regarding dental radiography intraoral film?
The film uses intensifying screens
Common sizes of film are 0, 2, 4
The film comes in 2 speeds: ultraspeed and insight
The film has a raised bump to allow for proper orientation
53
The science of nuclear medicine uses:
Radioisotopesto image structures
Isobars, which are emitted from technetium
Isotopes, which are not radioactive
Radiation to activate technetium
54
What does “high signal intensity” mean in a magnetic resonance image?
In a T2 image, the fat will show this
A high concentration of helium atoms is responding to the radio waves
More signal is received from a tissue in an image with a given weighting
This refers to the darkpart of an image
55
Once the horse has been injected with the isotope during nuclear medicine:
It is then radioactive but no protection is necessary
The radioisotope is notvery strong so it does not emit anything
It is then radioactive and needs special handling
The radioisotope emits just enough for thecamera to detect
56
What happens to atoms when they are placed in a magnet?
They shift to the north pole of the magnet
They move randomly
They reposition themselves with regard to their magnetic polarity
They start to spin or precess
57
Generally fish require anesthesia with tricaine methanesulfonate (MS-222) in the water to enable proper positioning
False
True
58
If a myelography is performed incorrectly, what is the worst side effect?
Paralysis
Death
Vomiting
Diarrhea
59
Which portion of the film-based imaging system converts x-rays to light?
Intensifying screen
Green film
Cassette
Photostimulable phosphors (PSP)
60
The fluoroscope is an adaptation of a radiography unit used to:
Provide dynamic real-time imaging
View the radiographic images after they areprocessed
Check the function of the brain
Scope the internal structures of the gastrointestinal system
61
Which of the following is NOT a possible OFA category?
Normal
Dysplastic
Abnormal
Borderline
62
Which of the following is NOT a property of Roentgen’s Rays?
Xrays travel at the speed of sound
Xrays are electrically neutral
Xrays affect photographic film
Xrays travel in a straight line
63
The imaging plate in computerized rad needs to be read at what time before the electrons return to their original state?
6-8 hours
4-6 hours
8-10 hours
10-12 hours
64
Which of the following is the appropriate radionuclide used in treatment of hyperthyroidism in cats?
Technetium 131
I131
Technetium 99
a. I99
65
The primary function of fluoroscopy is to provide real-time imaging of anatomical structures
False
True
66
During abdominal ultrasound, if the liver can be seen on both sides of the diaphragm; this artifact is called:
Side lobe
Edge shadowing
Reverberation
Mirror image
67
Which description most accurately fits a urinary bladder on ultrasound?
Radiolucent
Hypoechoic
Radiopaque
Hyperechoic
68
If foreign body with intestinal perforation is suspected. Which statement is TRUE about contrast study?
Iodine should not be used if perforation is suspected
Barium is best for upper GI studies
Barium should not be used if perforation is suspected
Iodine is best for upper GI studies
69
Which aspect of the x-ray tube provides the source of the electrons?
Anode
Focal spot
Exposure switch
Cathode
70
If pelvic trauma is suspected, what view is recommended?
Dorsal recumbency with pelvic limbs in a frog-leg position
Sternal recumbency with pelvic limbs extended
Sternal recumbency with pelvic limbs in a frog-leg position
Dorsal recumbency with pelvic limbs extended
71
Which of the following regarding skull radiography is FALSE?
Measurement is taken at the widest are of the cranium
Only one marker is needed for oblique views
Radiographic concerns include high contrast and tight collimation
72
The technical factors for fluoroscopy are:
Low kV and low mA
A function of the time; thekV does not matter
High kV and low mAs
High kVand a low mA; time is not preset
73
Which of the following statements regarding digital dental radiography is FALSE?
PPE and good radiography practice should always be used
The x-ray tube rotates
Pre-set kV is usually 100 and the mA is usually 12
Machines with a lead lined cone will have greater detail
74
A 5y/o MI Great Dane has presented for evaluation of possible elbow dysplasia. Which radiographic view is best for this?
Mediolateral flexed
Craniocaudal extended
Mediolateral extended
Craniocaudal flexed
75
The end result of the image on the fluoroscopy unit may be:
Stored on a hard drive and reviewed for diagnosis
Retained within the unit and reviewed on theimage intensifier
Stored on a hard drive and saved as a JPEG image
Converted into a WAV file and stored in a jukebox
76
How do you prevent air bubbles in a double contrast study?
Administer positive media first
Mix both media in a syringe and then administer
Administer negative media first
Administer the two media together at the same time
77
Which of the following regarding MRIs is FALSE?
MRI is based on the principle of magnetic spectroscopy
MRI has worse subject contrast than CT and radiography
MRI does NOT use ionizing radiation in image creation
MRI is superior for brain and spinal cord imaging
78
When the patient is in Right lateral recumbency, the area of the stomach that will be highlighted with gas is the fundus
True
False
79
Which joints must be included in a radiograph of the femur?
Coxofemoral and stifle
Stifle and tarsus
Coxofemoral and sacroiliac
Stifle and sacroiliac
80
Which of the following is NOT a purpose of dental radiography?
Identify gingival hyperplasia
Evaluate extent of fractured or chipped teeth
Identify tooth root abscesses
Identify retained roots
81
What determines the slice thickness on the CT scanner?
The prepatient collimators
All of the above
The predetector collimators
The technician's choice
82
A 9y/o MI English bulldog presents for possible heart failure. Which of the following is an appropriate view to take?
DV on peak expiration
VD on peak inspiration
Lateral on peak expiration
DV on peak inspiration
83
Which of the following aspects of x-ray production corrects the direction of the power as it travels to the x-ray tube?
Transformer
Rectifier circuit
KV selector
None of the above
84
For snake radiography, the____ view is more useful for imaging the spine/ribs and the ____ recumbency for viewing organs
Ventrodorsal, dorsoventral
Lateral, oblique
Dorsoventral, lateral
Lateral , dorsoventral
85
Which exotics species often needs sedation for radiographic studies?
Birds
Small mammals
Turtles
Tortoises
86
Which of the following is the correct vertebral formula for a dog?
C7, T13, L7, S3, Cd6-20
C7, T13, L5, S3, Cd6-20
C5, T13, L7, S3, Cd6-20
C7, T10, L6, S3, Cd6-20
87
Which of the following is NOT considered to be an extrathoracic structure?
Skin folds
Thymus
Diaphragm
Rib cage
88
Atoms with nuclei that undergo radiation decay are known as?
Isotopes
Protons
Radionuclides
Neutrons
89
Which of the following structures is not seen in an abdominal radiograph if it is normal?
Pancreas
Stomach
Spleen
Liver
90
What happens to frequency as the wavelength of x-ray increases?
It increases
It decreases
It does not change
It is not a factor when describing x-rays
91
Radiographs are considered legal records.
False
True
92
Which of the following is TRUE regarding radiographs of the femur?
The animal needs to be sedated for femoral radiographs
Measure mid shaft of femur to compensate for tissue thickness at either end
They are impossible images to obtain
Measurement is at the thickest part of the limb
93
The camera in nuclear medicine is used to:
Detect any backgroundradiation
Promote the use of the isotope
Help the technician obtaingood pictures
Detect the emissions of the isotope technetium
94
The camera used in nuclear medicine:
Senses the radioactivityand reacts to it with light bursts
Records the patient'sinternal movements as the isotope detects a signal
Recordsthe radioisotope as it collects in the area of interest
Is actually a gamma detector that collects bursts of activity
95
Regarding radiation safety, which of the following statements is FALSE?
Primary beam will easily penetrate lead aprons and gloves
PPE is worn to protect against secondary or scattered radiation
Lead does not completely protect against scattered radiation
Primary beam is easily blocked by lead aprons and gloves
96
Which of the following is NOT a component of every film based imaging system?
Intensifying screen
Cassette
Film
Photostimulable phosphors (PSP)

Radiography/Dx imaging VTNE Prep Flashcards | StudBud