M/C: Which of the following are true for an AP coccyx projection?
1. 15 degree cephalic angle.
2. 10 degree caudal angle
3. center 2 inches superior to the pubic symphysis - ANS 2 and 3
More windings on the primary side of the transformer will create ____ voltage on the secondary s...
M/C: Which of the following are true for an AP coccyx projection?
1. 15 degree cephalic angle.
2. 10 degree caudal angle
3. center 2 inches superior to the pubic symphysis - ANS 2 and 3
More windings on the primary side of the transformer will create ____ voltage on the secondary
side. - ANS less
In the construction of a radiographic grid, what defines the grid ratio? - ANS height of lead
strips compared to the distance between them
What positioning technique could help enhance the quality of a lateral knee? - ANS CR
with a 5 degree cephalic angle
During a fluoro exposure, a patient's stomach absorbs a total of 0.012 joules of energy. The
tissues of the stomach weigh 3 kilograms. What is the absorbed dose? - ANS 0.004 Gy
Genetic effects are those that manifest: - ANS in future generations of the exposed
individual
General Fluoro is limited to maximum entrance skin exposure rate of: - ANS 100 mGy/min
How is the patient positioned for an external rotation of the shoulder? - ANS abduct the
patients arm
T/F: Electrons and x-rays can be focused. - ANS False
Which device in an image receptor can collect and convert light into an electrical signal? - ANS
CCD, Photodiode
if a patient begins to have symptoms of hives after an injection of contrast for an IVP, what
should be done first? - ANS call a radiologist
,What is the most common cause of an off-level grid error? - ANS grid shifts due to patient
movement
The trachea bifurcates at the level of the _____. - ANS Aortic notch
If the x-ray tube is moved rapidly during a fluoro exam, the image will blur. This is the result of
the following: - ANS camera tube lag
during an x-ray exposure, electrons accelerate towards what part of the x-ray tube? - ANS
Anode
What is the radiation weighting factor of x-rays? - ANS 1
M/C: The use of proper collimation serves to:
1. Increase image contrast
2. reduce radiation exposure to the patient
3. decrease effective focal-spot size - ANS 1 and 2
Inherent filtration refers to: - ANS filtration that is part of tube design
What effect will decreasing collimation have on patient radiation exposure - ANS increases
patient radiation exposure
The severity of the hell effect can be increased by what change in SID? - ANS decreasing
sid
M/C: Federal Law on radiation protection requires which of the following?
1. signage for radiation areas
2. maintaining personal dose records
3. publication of personal dose records - ANS 1 and 2
What is the largest carpal bone? - ANS capitate
T/F: the esophagus lies anterior to the trachea? - ANS False
To function correctly, the current entering a transformer must be: - ANS AC
A middle-aged male with a blood pressure reading 180/80 mmHg would be diagnosed as - ANS
hypertensive
PICC lines are used to: - ANS Deliver medication through a vein
,M/C: Which of the following facts are true regarding x-rays?
1. x-rays have no mass
2. x-rays travel at the speed of light
3. x-rays have a positive charge - ANS 1 and 2
M/C: Which of the following is true about the fibula?
1. it sits laterally to the tibia
2. it articulates with the tibia at the proximal end
3. it articulates at the distal medial talus - ANS 1 and 2
photons produced outside of the actual focal spot are known as: - ANS Off focus radiation
M/C: Total filtration of the x-ray beam includes:
1. Added Filtration
2. Inherent filtration
3. collimation - ANS 1 and 2
Which sinus is demonstrated through the open mouth waters? - ANS sphenoid
Which area is myelography not used on? - ANS sacrum
M/C: How does the anode heel effect manifest itself on a radiographic image?
1. Higher exposure on the anode side of the image
2. Higher exposure on the cathode side of the image
3. Increased detail on the anode side of the image
4. increased detail on the cathode side of the image - ANS 2 and 3
Penumbra and detail share what relationship? - ANS increased penumbra = decreased
detail
When using AEC, which of the following may result in an image with excessive receptor
exposure? - ANS incorrect photo-timer cell selection
M/C: What portion of the CR imaging plate protects the plate from unwanted light and
background radiation? choose two.
A. protective layer
B. phosphor layer
C. conductive layer
D. light shield layer - ANS c and d
, How does the presence of oxygen affect the radiosensitivity of a cell - ANS increased
radiosensitivity
What is the normal pulse rate for an adult? - ANS 60-100 beats per minute
Equivalent dose is a measurement that takes into consideration which of the following
variables?
1. radiation type
2. tissue type
3. exposure rate - ANS 1
Within the oblique lumbar spine, the nose of the scotty dog is: - ANS Transverse process
What is demonstrated in profile in the medial rotation view of the elbow? - ANS coronoid
process
A decrease in oxygen content is called? - ANS Hypoxia
The wrist should be turned laterally ____ degrees when performing an oblique view - ANS
45
Acute infection of the parenchyma is characterized as: - ANS pneumonia
On an AP Pelvis, if the lesser trochanters are partially visible, this indicates: - ANS the feet
are in anatomic position
What determines the quantity of electrons in tube current? - ANS Heating of the filament
An avulsion fracture is characterized as: - ANS Fracture where a tendon or ligament pulls
off a piece of bone
The light signal released by photo-stimulable phosphors is too weak to produce a quality
radiograph. The light is enhanced by a device called? - ANS PMT (Photomultiplier tube)
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