LRA 221 COMPREHENSIVE FINALS REVIEW
2026 COMPLETE QUESTIONS AND VERIFIED
SOLUTIONS
◉ CR acquires an image through:
A. Conventional film/screen processing using a digital scanner
B. The heating of a thermoluminescent device
C. An electrically charged cassette
D. The use of a storage phosphor plate. Answer: D. The use of a
storage phosphor plate
◉ Technologist efficiency ratings are generally the same when
comparing conventional radiography with ___ radiography. Answer:
Computed
◉ The active element in a storage phosphor is:. Answer: Barium
Fluorohalide
,◉ In reference to PSP image capture, to release the latent image,
which of the following devices is scanned over the phosphor plate?.
Answer: Focused laser light
◉ X-ray energy related in indirect capture DR will stimulate a ___
changed into an electrical signal. Answer: Scintillator
◉ The ___ converts x-ray energy directly to a digital electrical signal.
Answer: Photoconductor
◉ Exposure latitude is to conventional radiography as ___ is to DR.
Answer: Dynamic Range
◉ A look-up table maps image ___.. Answer: Grayscale Values
◉ All of the following are components of a PACS except independent
___ and ___ stations. Answer: Kilovoltage Peak
Milliampere-Second
◉ (T/F) Similar to CR, DR can use the existing diagnostic equipment
found in today's imaging departments. Answer: False
, ◉ (T/F) Indirect capture DR converts absorbed x-ray energy into
visible light. Answer: True
◉ (T/F) DICOM is a standard that allows imaging modalities and
PACS to communicate in the same language. Answer: True
◉ (T/F) Changing the matrix and the FOV will not change the size of
the pixel. Answer: False
◉ Each square in a matrix is called a:
A. Matrix element
B. Picture element
C. Bit
D. Byte. Answer: B. Picture Element
◉ The number of bits per pixel is known as bit ___.. Answer: Depth
◉ (T/F) Exposure index refers to the amount of exposure to the
patient. Answer: False
2026 COMPLETE QUESTIONS AND VERIFIED
SOLUTIONS
◉ CR acquires an image through:
A. Conventional film/screen processing using a digital scanner
B. The heating of a thermoluminescent device
C. An electrically charged cassette
D. The use of a storage phosphor plate. Answer: D. The use of a
storage phosphor plate
◉ Technologist efficiency ratings are generally the same when
comparing conventional radiography with ___ radiography. Answer:
Computed
◉ The active element in a storage phosphor is:. Answer: Barium
Fluorohalide
,◉ In reference to PSP image capture, to release the latent image,
which of the following devices is scanned over the phosphor plate?.
Answer: Focused laser light
◉ X-ray energy related in indirect capture DR will stimulate a ___
changed into an electrical signal. Answer: Scintillator
◉ The ___ converts x-ray energy directly to a digital electrical signal.
Answer: Photoconductor
◉ Exposure latitude is to conventional radiography as ___ is to DR.
Answer: Dynamic Range
◉ A look-up table maps image ___.. Answer: Grayscale Values
◉ All of the following are components of a PACS except independent
___ and ___ stations. Answer: Kilovoltage Peak
Milliampere-Second
◉ (T/F) Similar to CR, DR can use the existing diagnostic equipment
found in today's imaging departments. Answer: False
, ◉ (T/F) Indirect capture DR converts absorbed x-ray energy into
visible light. Answer: True
◉ (T/F) DICOM is a standard that allows imaging modalities and
PACS to communicate in the same language. Answer: True
◉ (T/F) Changing the matrix and the FOV will not change the size of
the pixel. Answer: False
◉ Each square in a matrix is called a:
A. Matrix element
B. Picture element
C. Bit
D. Byte. Answer: B. Picture Element
◉ The number of bits per pixel is known as bit ___.. Answer: Depth
◉ (T/F) Exposure index refers to the amount of exposure to the
patient. Answer: False
