HESI V3 ACTUAL EXAM AND PRACTICE EXAM
QUESTIONS ACCURATE ACTUAL EXAM /
FREQUENTLY TESTED QUESTIONS WITH DETAILED
ANSWERS | GUARANTEED PASS | GRADED A+ |
LATEST UPDATE
Which term refers to a graphical representation of pixel values? - CORRECT
ANSWER ✔✔ - Histogram.
Which milliampere seconds (mAs) value should be selected for a patient
measuring 30 centimeters if 22 mAs is optimal for a patient measuring 25
centimeters? - CORRECT ANSWER ✔✔ - 44 mAs.
How does aliasing appear radiographically when using computed radiography
(CR)? - CORRECT ANSWER ✔✔ - Two superimposed images, slightly out of
alignment.
Which image, when performed according to normal standards, will demonstrate
the greatest magnification of the anatomy of interest? - CORRECT ANSWER ✔✔ -
Lateral cervical spine.
Which post-processing action is always acceptable? - CORRECT ANSWER ✔✔ -
Annotating with an upright marker to show the patient was in an erect position.
A fixed kilovolts peak (kVp)-variable milliampere (mA) chart recommends
exposure factors of 70 kVp and 32 mAs for an anteroposterior (AP) abdomen
projection on an average-size patient. Based on this chart, which fixed kVp
Pg. 1
,technique is most appropriate for an AP projection of a double contrast upper
gastrointestinal (UGI) image? - CORRECT ANSWER ✔✔ - 90 kVp, 8 mAs.
How will raising the window level affect the digital image? - CORRECT ANSWER
✔✔ - Increases brightness.
Which factors affect spatial resolution in digital imaging? (Select the two that
apply.) - CORRECT ANSWER ✔✔ - Smaller pixels
Greater number of pixels
How does a wide window width affect an image? - CORRECT ANSWER ✔✔ -
Decreases contrast.
Which device is located in the primary section of a general x-ray circuit? -
CORRECT ANSWER ✔✔ - Timer circuit.
Which device provides the required amount of voltage for x-ray production? -
CORRECT ANSWER ✔✔ - Transformer.
This mobile chest image lacks which required image element? - CORRECT
ANSWER ✔✔ - Anatomical markers.
Which device in the x-ray circuit changes alternating current to direct current? -
CORRECT ANSWER ✔✔ - Rectifier.
Pg. 2
,Which post-processing techniques may be used with digital imaging? (Select the
three that apply.) - CORRECT ANSWER ✔✔ - Smoothing.
Electronic masking.
Filtering.
Which technical factor increases the number of x-ray photons reaching the image
receptor (IR)? - CORRECT ANSWER ✔✔ - Increased milliamperage (mA).
A radiograph of optimal density is produced at 15 milliampere seconds (mAs) and
a source to image receptor distance (SID) of 40 inches. Which mAs value is
required to produce the same radiographic density if this exam is repeated at an
SID of 48 inches? - CORRECT ANSWER ✔✔ - 22.
How are automatic exposure control (AEC) devices for mammography different
than those used with diagnostic radiography? - CORRECT ANSWER ✔✔ - Greater
accuracy is required.
Which acronym describes a network of computers that manages digital images? -
CORRECT ANSWER ✔✔ - PACS.
Which is an advantage of digital imaging systems compared to traditional film-
screen systems? - CORRECT ANSWER ✔✔ - Improved contrast resolution.
Which set of exposure factors is most likely to provide clear visualization of the
upper cervical spine through the mandible when performing an anteroposterior
(AP) "wagging jaw" projection (Ottonello Method)? - CORRECT ANSWER ✔✔ - 75
kilovolts peak (kVp), 25 milliamperes (mA), 2.0 seconds
Pg. 3
, Which is the primary advantage of a rotating anode? - CORRECT ANSWER ✔✔ -
Less heat is generated at the target.
An image of the abdomen demonstrates appropriate density and scale of
contrast, but motion blur is present due to peristalsis. If the original image was
obtained with a 200 milliampere (mA) station and an exposure time of 0.35
seconds, which set of technical factors will produce a comparable exposure while
minimizing motion artifact? - CORRECT ANSWER ✔✔ - 500 mA and 0.14 seconds.
Which effect does a step-up transformer have on voltage and current? - CORRECT
ANSWER ✔✔ - Voltage is increased and current is decreased.
Which x-ray tube orientation represents the correct application of the anode heel
effect? - CORRECT ANSWER ✔✔ - The anode end is positioned toward the head
for an anteroposterior (AP) thoracic spine projection.
Which scenario causes foreshortening of the anatomy on the image? - CORRECT
ANSWER ✔✔ - The humerus in contact with the image receptor (IR), the forearm
lifted off the image receptor, and the central ray directed perpendicular to the
long axis of the humerus.
Which substance is added to the x-ray tube housing to increase heat dissipation? -
CORRECT ANSWER ✔✔ - Oil
Which milliampere-seconds (mAs) setting is most likely to produce quantum
mottle? - CORRECT ANSWER ✔✔ - 2.5 mAs.
Pg. 4
QUESTIONS ACCURATE ACTUAL EXAM /
FREQUENTLY TESTED QUESTIONS WITH DETAILED
ANSWERS | GUARANTEED PASS | GRADED A+ |
LATEST UPDATE
Which term refers to a graphical representation of pixel values? - CORRECT
ANSWER ✔✔ - Histogram.
Which milliampere seconds (mAs) value should be selected for a patient
measuring 30 centimeters if 22 mAs is optimal for a patient measuring 25
centimeters? - CORRECT ANSWER ✔✔ - 44 mAs.
How does aliasing appear radiographically when using computed radiography
(CR)? - CORRECT ANSWER ✔✔ - Two superimposed images, slightly out of
alignment.
Which image, when performed according to normal standards, will demonstrate
the greatest magnification of the anatomy of interest? - CORRECT ANSWER ✔✔ -
Lateral cervical spine.
Which post-processing action is always acceptable? - CORRECT ANSWER ✔✔ -
Annotating with an upright marker to show the patient was in an erect position.
A fixed kilovolts peak (kVp)-variable milliampere (mA) chart recommends
exposure factors of 70 kVp and 32 mAs for an anteroposterior (AP) abdomen
projection on an average-size patient. Based on this chart, which fixed kVp
Pg. 1
,technique is most appropriate for an AP projection of a double contrast upper
gastrointestinal (UGI) image? - CORRECT ANSWER ✔✔ - 90 kVp, 8 mAs.
How will raising the window level affect the digital image? - CORRECT ANSWER
✔✔ - Increases brightness.
Which factors affect spatial resolution in digital imaging? (Select the two that
apply.) - CORRECT ANSWER ✔✔ - Smaller pixels
Greater number of pixels
How does a wide window width affect an image? - CORRECT ANSWER ✔✔ -
Decreases contrast.
Which device is located in the primary section of a general x-ray circuit? -
CORRECT ANSWER ✔✔ - Timer circuit.
Which device provides the required amount of voltage for x-ray production? -
CORRECT ANSWER ✔✔ - Transformer.
This mobile chest image lacks which required image element? - CORRECT
ANSWER ✔✔ - Anatomical markers.
Which device in the x-ray circuit changes alternating current to direct current? -
CORRECT ANSWER ✔✔ - Rectifier.
Pg. 2
,Which post-processing techniques may be used with digital imaging? (Select the
three that apply.) - CORRECT ANSWER ✔✔ - Smoothing.
Electronic masking.
Filtering.
Which technical factor increases the number of x-ray photons reaching the image
receptor (IR)? - CORRECT ANSWER ✔✔ - Increased milliamperage (mA).
A radiograph of optimal density is produced at 15 milliampere seconds (mAs) and
a source to image receptor distance (SID) of 40 inches. Which mAs value is
required to produce the same radiographic density if this exam is repeated at an
SID of 48 inches? - CORRECT ANSWER ✔✔ - 22.
How are automatic exposure control (AEC) devices for mammography different
than those used with diagnostic radiography? - CORRECT ANSWER ✔✔ - Greater
accuracy is required.
Which acronym describes a network of computers that manages digital images? -
CORRECT ANSWER ✔✔ - PACS.
Which is an advantage of digital imaging systems compared to traditional film-
screen systems? - CORRECT ANSWER ✔✔ - Improved contrast resolution.
Which set of exposure factors is most likely to provide clear visualization of the
upper cervical spine through the mandible when performing an anteroposterior
(AP) "wagging jaw" projection (Ottonello Method)? - CORRECT ANSWER ✔✔ - 75
kilovolts peak (kVp), 25 milliamperes (mA), 2.0 seconds
Pg. 3
, Which is the primary advantage of a rotating anode? - CORRECT ANSWER ✔✔ -
Less heat is generated at the target.
An image of the abdomen demonstrates appropriate density and scale of
contrast, but motion blur is present due to peristalsis. If the original image was
obtained with a 200 milliampere (mA) station and an exposure time of 0.35
seconds, which set of technical factors will produce a comparable exposure while
minimizing motion artifact? - CORRECT ANSWER ✔✔ - 500 mA and 0.14 seconds.
Which effect does a step-up transformer have on voltage and current? - CORRECT
ANSWER ✔✔ - Voltage is increased and current is decreased.
Which x-ray tube orientation represents the correct application of the anode heel
effect? - CORRECT ANSWER ✔✔ - The anode end is positioned toward the head
for an anteroposterior (AP) thoracic spine projection.
Which scenario causes foreshortening of the anatomy on the image? - CORRECT
ANSWER ✔✔ - The humerus in contact with the image receptor (IR), the forearm
lifted off the image receptor, and the central ray directed perpendicular to the
long axis of the humerus.
Which substance is added to the x-ray tube housing to increase heat dissipation? -
CORRECT ANSWER ✔✔ - Oil
Which milliampere-seconds (mAs) setting is most likely to produce quantum
mottle? - CORRECT ANSWER ✔✔ - 2.5 mAs.
Pg. 4
