LRA 221 FINALS REVIEW EXAM
QUESTIONS WITH VERIFIED
ANSWERS. A+ GRADE 2025/2026.
Film and intensifying screens are primarily used in - ANS conventional radiography
CR acquires an image through: - ANS The use of a storage phosphor plate
Technologist efficiency ratings are generally the same when comparing conventional
radiography with ______ radiography. - ANS computed
The active element in a storage phosphor is: - ANS barium fluorohalide
In reference to PSP image capture, to release the latent image, which of the following devices is
scanned over the phosphor plate? - ANS Focused laser light
X-ray energy related in indirect capture DR will stimulate a ______, which eventually is changed
into an electrical signal. - ANS scintillator
The ______ converts x-ray energy directly to a digital electrical signal. - ANS photoconductor
1 @COPYRIGHT 2025/2026 ALLRIGHTS RESERVED
, Exposure latitude is to conventional radiography as _______ is to DR. - ANS dynamic range
A look-up table maps - ANS Image gray scale values
All of the following are components of a PACS except - ANS independent kilovoltage peak
and milliampere-second stations.
Similar to CR, DR can use the existing diagnostic equipment found in today's imaging
departments. - ANS False- Can't use the same equipment
Indirect capture DR converts absorbed x-ray energy into visible light. - ANS True- indirect DR
convert X-ray energy to visible light
DICOM is a standard that allows imaging modalities and PACS to communicate in the same
language. - ANS True
Which of the following statements is not true? - ANS Changing the matrix and the FOV will
not change the size of the pixel.
Each square in a matrix is called a - ANS picture element
The number of bits per pixel is known as bit - ANS depth
Which of the following statements is not true?? - ANS Exposure index refers to the amount
of exposure to the patient.
Deviation index is the difference between _____ and _____ expressed in logarithmic fashion. -
ANS actual exposure (KIND); target exposure (KTGT)
2 @COPYRIGHT 2025/2026 ALLRIGHTS RESERVED
QUESTIONS WITH VERIFIED
ANSWERS. A+ GRADE 2025/2026.
Film and intensifying screens are primarily used in - ANS conventional radiography
CR acquires an image through: - ANS The use of a storage phosphor plate
Technologist efficiency ratings are generally the same when comparing conventional
radiography with ______ radiography. - ANS computed
The active element in a storage phosphor is: - ANS barium fluorohalide
In reference to PSP image capture, to release the latent image, which of the following devices is
scanned over the phosphor plate? - ANS Focused laser light
X-ray energy related in indirect capture DR will stimulate a ______, which eventually is changed
into an electrical signal. - ANS scintillator
The ______ converts x-ray energy directly to a digital electrical signal. - ANS photoconductor
1 @COPYRIGHT 2025/2026 ALLRIGHTS RESERVED
, Exposure latitude is to conventional radiography as _______ is to DR. - ANS dynamic range
A look-up table maps - ANS Image gray scale values
All of the following are components of a PACS except - ANS independent kilovoltage peak
and milliampere-second stations.
Similar to CR, DR can use the existing diagnostic equipment found in today's imaging
departments. - ANS False- Can't use the same equipment
Indirect capture DR converts absorbed x-ray energy into visible light. - ANS True- indirect DR
convert X-ray energy to visible light
DICOM is a standard that allows imaging modalities and PACS to communicate in the same
language. - ANS True
Which of the following statements is not true? - ANS Changing the matrix and the FOV will
not change the size of the pixel.
Each square in a matrix is called a - ANS picture element
The number of bits per pixel is known as bit - ANS depth
Which of the following statements is not true?? - ANS Exposure index refers to the amount
of exposure to the patient.
Deviation index is the difference between _____ and _____ expressed in logarithmic fashion. -
ANS actual exposure (KIND); target exposure (KTGT)
2 @COPYRIGHT 2025/2026 ALLRIGHTS RESERVED
