HESI RAD V2 EXAM QUESTIONS & EXPERTLY
VERIFIED ANSWERS, .
Terms in this set (200)
A step-up transformer with 90,000 turns
300 turns in the primary coil
is supplied with 220 volts to
this primary. How many
secondary turns are needed
to produce a 66,000 volt
output?
What is the result if the Decreased scatter absorption.
total lead content of a
grid is decreased?
What is the purpose of To black out areas of light and make fine details more visible.
shuttering?
In conventional Exposure angle.
tomography, the
radiographer is able to
control the thickness of the
tomographic slice by
altering which of the
following?
Variable kilovolts peak (kVp).
Which type of exposure
technique chart would allow
the radiographer to make
small, fine adjustments for
orthopedic work?
,An imaging department, Fixed mode works well for exams where it is difficult to
having difficulty obtaining center the image on the image receptor (IR).
acceptable tangential patella
images, has opted to have
the post processing mode set
to
"fixed" for all patella images.
Why is this a good choice?
Pelvis routine calls for an Greater measurement, higher kilovolts peak (kVp) and milliampere-
anteroposterior (AP) with a seconds (mAs).
perpendicular central ray
(CR), and an axial AP with a
40 degree cephalic angle.
Using a caliper
measurement, the
technique chart yields a
perfect set of exposure
factors for the perpendicular
AP. How will the necessary
exposure factors for the axial
differ from the
perpendicular AP?
Increased photon flux to the image receptor (IR)
Which advantage does a
500 milliampere (mA)
station have over a 200 mA
station?
,A radiographer is performing 80 kVp @ 40 mAs.
a portable abdomen is using
an image receptor with an
8:1 grid. The radiographer
knows a technique for the
abdomen using a 12:1 grid is
80 kilovolts peak (kVp) using
50 milliampereseconds
(mAs). Which would the new
technique be in order to
maintain image quality?
If 7 milliampere-seconds 35
(mAs) provides optimal
density without a grid,
which mAs should be used
with a 12:1 grid?
How does a radiographer Compression of the body part.
maximize signal to digital Shorter source to image receptor distance (SID).
image receptors? (Select the
Longer exposure time.
three that apply.)
What results from utilizing a Lower contrast, but greater error margin in central ray (CR)
lower ratio grid? placement.
Why is it important for the This value may be used as a basis for calculating manual
radiographer to observe the techniques.
milliampere seconds (mAs)
readout at the end of each
exposure when using
automatic exposure control
(AEC)?
Emphysema is a destructive disease, meaning the chest
How does emphysema
tissue is more radiolucent.
impact radiographic imaging
of the chest?
, If computed radiography 48 hours.
(CR) imaging plates (IP)
haven't been used, how
often should they be
erased?
In which way can the Decrease exposure time.
radiographer minimize
motion due to peristalsis?
Which best describes anode A phenomenon where x-ray intensity is greater under the
heel effect? cathode.
Which will increase the Large matrix.
appearance of noise in a
digital image, assuming only
the named factor in each
response is changed?
Which is the preferred Place a side marker directly on the image receptor (IR) prior
method for indicating the to exposure.
correct anatomic side on a
radiographic image?
If a radiographer wanted to Increase kilovolts peak (kVp) by 15%
double image density
without doubling the
patient's dose, which
action should be taken?
Which statement is correct EI gives an approximation of the patient's dose.
regarding the relationship of
patient dose to exposure
index (EI)?
VERIFIED ANSWERS, .
Terms in this set (200)
A step-up transformer with 90,000 turns
300 turns in the primary coil
is supplied with 220 volts to
this primary. How many
secondary turns are needed
to produce a 66,000 volt
output?
What is the result if the Decreased scatter absorption.
total lead content of a
grid is decreased?
What is the purpose of To black out areas of light and make fine details more visible.
shuttering?
In conventional Exposure angle.
tomography, the
radiographer is able to
control the thickness of the
tomographic slice by
altering which of the
following?
Variable kilovolts peak (kVp).
Which type of exposure
technique chart would allow
the radiographer to make
small, fine adjustments for
orthopedic work?
,An imaging department, Fixed mode works well for exams where it is difficult to
having difficulty obtaining center the image on the image receptor (IR).
acceptable tangential patella
images, has opted to have
the post processing mode set
to
"fixed" for all patella images.
Why is this a good choice?
Pelvis routine calls for an Greater measurement, higher kilovolts peak (kVp) and milliampere-
anteroposterior (AP) with a seconds (mAs).
perpendicular central ray
(CR), and an axial AP with a
40 degree cephalic angle.
Using a caliper
measurement, the
technique chart yields a
perfect set of exposure
factors for the perpendicular
AP. How will the necessary
exposure factors for the axial
differ from the
perpendicular AP?
Increased photon flux to the image receptor (IR)
Which advantage does a
500 milliampere (mA)
station have over a 200 mA
station?
,A radiographer is performing 80 kVp @ 40 mAs.
a portable abdomen is using
an image receptor with an
8:1 grid. The radiographer
knows a technique for the
abdomen using a 12:1 grid is
80 kilovolts peak (kVp) using
50 milliampereseconds
(mAs). Which would the new
technique be in order to
maintain image quality?
If 7 milliampere-seconds 35
(mAs) provides optimal
density without a grid,
which mAs should be used
with a 12:1 grid?
How does a radiographer Compression of the body part.
maximize signal to digital Shorter source to image receptor distance (SID).
image receptors? (Select the
Longer exposure time.
three that apply.)
What results from utilizing a Lower contrast, but greater error margin in central ray (CR)
lower ratio grid? placement.
Why is it important for the This value may be used as a basis for calculating manual
radiographer to observe the techniques.
milliampere seconds (mAs)
readout at the end of each
exposure when using
automatic exposure control
(AEC)?
Emphysema is a destructive disease, meaning the chest
How does emphysema
tissue is more radiolucent.
impact radiographic imaging
of the chest?
, If computed radiography 48 hours.
(CR) imaging plates (IP)
haven't been used, how
often should they be
erased?
In which way can the Decrease exposure time.
radiographer minimize
motion due to peristalsis?
Which best describes anode A phenomenon where x-ray intensity is greater under the
heel effect? cathode.
Which will increase the Large matrix.
appearance of noise in a
digital image, assuming only
the named factor in each
response is changed?
Which is the preferred Place a side marker directly on the image receptor (IR) prior
method for indicating the to exposure.
correct anatomic side on a
radiographic image?
If a radiographer wanted to Increase kilovolts peak (kVp) by 15%
double image density
without doubling the
patient's dose, which
action should be taken?
Which statement is correct EI gives an approximation of the patient's dose.
regarding the relationship of
patient dose to exposure
index (EI)?
