ARRT Radiography Exam Review 2 l Fully solved 2023

ARRT Radiography Exam Review 2 l
Fully solved 2023
Electrons from the photocathode are concentrated and directed toward the other end
of the image-intensifier tube by a series of ________ and by ________ kVp applied
through the tube. - CORRECT ANSWER 1) Electrostatic Lenses (Focusing
Lenses)
2) 25
Once electrons are propelled across the tube from the photocathode, they strike the
________. - CORRECT ANSWER Output Phosphor
Once the energy of the electrons hits the output phosphor, it is converted by the
phosphor to ________ in amounts ________ to ________ times greater than the
photocathode. - CORRECT ANSWER 1) Visible Light
2) 50
3) 75
The increase in brightness from the photocathode to the output phosphor is known
as ________. - CORRECT ANSWER Flux Gain
The ________ phosphor is smaller than the ________ phosphor, resulting in an
increase in brightness known as ________. - CORRECT ANSWER 1) Output
2) Input
3) Minification Gain
Total brightness gain is a product of ________ gain and ________ gain. -
CORRECT ANSWER 1) Minification
2) Flux
Total brightness gain ranges from ________ to ________, and decreases as the
tube ages. - CORRECT ANSWER 1) 5000
2) 20000
A complete program in a radiology department that addresses all aspects of quality,
including customer service, image interpretation, accuracy of diagnosis, and
distribution of radiologists' reports is known as: - CORRECT ANSWER Quality
Assurance
A program that specifically addresses the safe and reliable operation of equipment is
known as: - CORRECT ANSWER Quality Control
A quality control program is required by ________. - CORRECT ANSWER The
Joint Commission
Collimation must be accurate to within ________% of the source-to-image receptor
distance. - CORRECT ANSWER 2
The effective focal spot size should be within ________% of the size stated in the
equipment specifications. - CORRECT ANSWER 50
kVp must be accurate to within ________% of the kVp indicated. - CORRECT
ANSWER 10
The exposure timer should be accurate to within ________% of the time chosen for
exposures over 10 ms. - CORRECT ANSWER 5
Adjacent mA stations should be accurate to within ________% of one another. This
is known as ________. - CORRECT ANSWER 1) 10
2) Exposure Linearity
Radiation intensity of sequential exposures should not vary more than ________%.
This is known as ________. - CORRECT ANSWER 1) 5
2) Exposure Reproduceability

, ARRT Radiography Exam Review 2 l
Fully solved 2023
The fluoroscopy exposure rate should be tested with a digital dosimeter, and should
not be more than________ per minute. - CORRECT ANSWER 100 mGyᵃ
CR plates should be erased at least every ________. - CORRECT ANSWER 48
Hours
CR readers should be calibrated ________. - CORRECT ANSWER Annually
________ comprises of systems for image acquisition, display, network and storage.
- CORRECT ANSWER Picture Archiving and Communications System (PACS)
________ is a standard protocol used for blending PACS and various imaging
modalities. - CORRECT ANSWER Digital Imaging and Communications in
Medicine (DICOM)
________ blends patient care information, reporting and billing. - CORRECT
ANSWER Hospital Information System (HIS)
________ is used for ordering procedures and reporting results. - CORRECT
ANSWER Radiology Information System (RIS)
________ is a comprehensive collection of patient information stored in a digital
format that may be shared across networks. Data may include history, medications,
allergies, test results and vital signs. - CORRECT ANSWER Electronic Medical
Record (EMR)
The sharpness of the structural edges recorded on the images is known as: -
CORRECT ANSWER Spacial Resolution
Spacial resolution may be described as the ________ representation of the part
being imaged. - CORRECT ANSWER Geometric
The highest spacial resolution that can be recorded, and is controlled by pixel pitch,
is known as: - CORRECT ANSWER Nyquist Frequency
The amount of radiation striking the image receptor is known as: - CORRECT
ANSWER Receptor Exposure
The measurement of the luminance of an area in a radiographic image displayed on
a monitor is known as: - CORRECT ANSWER Brightness
The visible difference between any two selected areas of brightness levels within the
displayed radiographic images is known as: - CORRECT ANSWER Contrast
The number of brightness levels (or shades of gray) visible on an image is linked to
the bit depth of a system, and is known as: - CORRECT ANSWER Grayscale
When slight differences between gray shades is present (low contrast) but the total
number of gray shades is great, it is known as: - CORRECT ANSWER Long
Scale Contrast
When considerable or major differences between gray shades are present (high
contrast), but the total number of gray shades is small, it is known as: - CORRECT
ANSWER Short Scale Contrast
Contrast resolution is controlled by ________, or the number of bits per pixel. -
CORRECT ANSWER Bit Depth
With larger the bit depth, ________ levels of gray are possible in an image. -
CORRECT ANSWER Greater
The range of exposures that may be captured by a detector is known as: -
CORRECT ANSWER Dynamic Range
The range of exposures that produce quality images at appropriate patient dose is
known as: - CORRECT ANSWER Exposure Latitude