1|Page
HESI Radiology Exit Exam prep Version 1 Verified
Exam Questions and Answers Practice Questions with
Solutions Newest | Already Graded A+||Newest
Exam!!!
Which pathologic condition requires a reduction in
exposure factors to produce an acceptable image? -
Answer-Emphysema.
The radiographer is using automatic brightness control
during fluoroscopy. What change in patient exposure
should the radiographer expect as the patient size
increases? - Answer-Increase in exposure.
Which calculation is used to determine grid ratio? -
Answer-Height of the lead strips divided by the width of
the interspace material.
Which is the most likely cause of a histogram error? -
Answer-Selection of an incorrect exam from the look-up
table.
,2|Page
Picture archiving and communication system (PACS)
networks are capable of performing which functions?
(Select the two that apply.) - Answer-Transmitting
diagnostic images to remote work stations.
Downloading images from different imaging modalities.
Who judges radiographic images for quality? (Select the
four that apply.) - Answer-Radiographers
Ordering physicians
Radiologists
Quality control technologists
How can magnification of the heart be reduced when
performing a chest x-ray? - Answer-Use a 72-inch source-
image-receptor-distance (SID).
What is the function of a rectifier? - Answer-Convert
alternating current to pulsating direct current.
Which change in technical factors is most likely to result in
decreased exposure to the image receptor (IR)? - Answer-
Increased grid ratio
,3|Page
Which technique produces a 2 milliroentgens (mR)
exposure to an image receptor plate if 70 kilovolts peak
(kVp) at 25 milliampere-seconds (mAs) produces 1.6 mR?
- Answer-70 kVp at 31.25 mAs
Consider this anteroposterior (AP) mobile chest image.
What will improve the photographic quality of this image? -
Answer-Using a grid
On which system does hospital staff input new orders for
radiologic examinations? - Answer-Hospital information
system.
Which part of the x-ray circuit is controlled by adjusting the
milliamperage (mA) setting on the operating console for
the purpose of producing the heat necessary for
thermionic emission? - Answer-Filament circuit
Which change should be made when performing an
abdomen radiograph on a patient with ascites? - Answer-
Raise exposure factors.
, 4|Page
Which system can store images? - Answer-Picture
archival and communication system (PACS).
What is the result if pixel bit depth is decreased? - Answer-
Contrast resolution is decreased.
Prior to performing a posteroanterior (PA) chest projection
with automatic exposure control (AEC), the radiographer
discovers that the patient has had a right total
pneumonectomy. Which technical consideration should be
considered? - Answer-Selecting only the detector on the
left side.
Without changing any other factors, which effect is caused
by decreasing the field size from 14X17 inches to 8X10
inches? - Answer-Decrease in the amount of scatter
radiation within the part.
How often should lead aprons be evaluated to determine if
cracks or holes are present? - Answer-Annually.
An increase in which factor will improve spatial resolution?
- Answer-Source to image receptor distance (SID).
HESI Radiology Exit Exam prep Version 1 Verified
Exam Questions and Answers Practice Questions with
Solutions Newest | Already Graded A+||Newest
Exam!!!
Which pathologic condition requires a reduction in
exposure factors to produce an acceptable image? -
Answer-Emphysema.
The radiographer is using automatic brightness control
during fluoroscopy. What change in patient exposure
should the radiographer expect as the patient size
increases? - Answer-Increase in exposure.
Which calculation is used to determine grid ratio? -
Answer-Height of the lead strips divided by the width of
the interspace material.
Which is the most likely cause of a histogram error? -
Answer-Selection of an incorrect exam from the look-up
table.
,2|Page
Picture archiving and communication system (PACS)
networks are capable of performing which functions?
(Select the two that apply.) - Answer-Transmitting
diagnostic images to remote work stations.
Downloading images from different imaging modalities.
Who judges radiographic images for quality? (Select the
four that apply.) - Answer-Radiographers
Ordering physicians
Radiologists
Quality control technologists
How can magnification of the heart be reduced when
performing a chest x-ray? - Answer-Use a 72-inch source-
image-receptor-distance (SID).
What is the function of a rectifier? - Answer-Convert
alternating current to pulsating direct current.
Which change in technical factors is most likely to result in
decreased exposure to the image receptor (IR)? - Answer-
Increased grid ratio
,3|Page
Which technique produces a 2 milliroentgens (mR)
exposure to an image receptor plate if 70 kilovolts peak
(kVp) at 25 milliampere-seconds (mAs) produces 1.6 mR?
- Answer-70 kVp at 31.25 mAs
Consider this anteroposterior (AP) mobile chest image.
What will improve the photographic quality of this image? -
Answer-Using a grid
On which system does hospital staff input new orders for
radiologic examinations? - Answer-Hospital information
system.
Which part of the x-ray circuit is controlled by adjusting the
milliamperage (mA) setting on the operating console for
the purpose of producing the heat necessary for
thermionic emission? - Answer-Filament circuit
Which change should be made when performing an
abdomen radiograph on a patient with ascites? - Answer-
Raise exposure factors.
, 4|Page
Which system can store images? - Answer-Picture
archival and communication system (PACS).
What is the result if pixel bit depth is decreased? - Answer-
Contrast resolution is decreased.
Prior to performing a posteroanterior (PA) chest projection
with automatic exposure control (AEC), the radiographer
discovers that the patient has had a right total
pneumonectomy. Which technical consideration should be
considered? - Answer-Selecting only the detector on the
left side.
Without changing any other factors, which effect is caused
by decreasing the field size from 14X17 inches to 8X10
inches? - Answer-Decrease in the amount of scatter
radiation within the part.
How often should lead aprons be evaluated to determine if
cracks or holes are present? - Answer-Annually.
An increase in which factor will improve spatial resolution?
- Answer-Source to image receptor distance (SID).
