ARRT Kettering EXAM REAL EXAM ALL
QUESTIONS AND CORRECT
ANSWERS|AGRADE
An image that demonstrates low contrast can be caused from:
1. High mAs
2. Low kVp
3. Insufficient beam restriction - Answers - ✔✔ 3 only
Which of the following interactions with matter reduce contrast in an x-ray image? -
Answers - ✔✔ Compton scattering
From anatomical position, pronating the hand will result in the palm facing ____. -
Answers - ✔✔ Posteriorly
The maximum variation between consecutive exposures when using the same technical
factor is: - Answers - ✔✔ within 5%
An atom containing three protons and three neutrons in its nucleus has a (an): -
Answers - ✔✔ atomic number of 3
What term is applied to the level of medical asepsis that involves the destruction of
pathogens by using chemical materials? - Answers - ✔✔ Disinfection
Why is it important for a patient to have their knees flexed for an AP projection of the
lumbar spine? - Answers - ✔✔ to reduce the lordotic curvature of the lumbar spine and
open up the joint spaces
Which of the following is an accepted standard for networking medical devices to
exchange images and information regardless of the brand of equipment? - Answers -
✔✔ DICOM
The portion of the image intensifier device that is responsible for converting light
photons into free electrons is the: - Answers - ✔✔ photocathode
With increasing levels of beam filtration where will the greatest dose savings be
realized? - Answers - ✔✔ In the initial layers of tissue struck by the beam
What kind of fracture is this? - Answers - ✔✔ compound
, With all other technical factors remaining constant, what effect(s) will increasing
amounts of filtration have on the X-ray beam? 1. decrease patient skin exposure 2.
decrease the measurement of the shortest wavelength present within the beam
3. harden the X-ray beam
4. increase the percentage of beam penetration through the objects of interest -
Answers - ✔✔ 1, 3, and 4 only
Which of the following anatomic structures is best demonstrated in the LAO position
while performing a BE? - Answers - ✔✔ Splenic flexure
A bit depth of 9 will result in how many shades of gray? - Answers - ✔✔ 512 (2^9)
The bucky slot cover of a fluoroscopic unit must provide a minimum lead equivalent
absorption equal to ___mm of lead. - Answers - ✔✔ .25 mm
What should be the technologist's first response upon discovering a fire has broken out
in a patient holding area? - Answers - ✔✔ evacuate any patients from the area
The central ray is directed to a point 5 cm (2") distal to the ___ when performing an AP
projection of the scapula. - Answers - ✔✔ Coracoid process
A decrease in beam filtration will have what effect on radiographic image contrast? -
Answers - ✔✔ contrast will increase
The greatest spatial resolution will be seen with which of the following image matrix
sizes? - Answers - ✔✔ 2048x2048
A threshold dose-response relationship is seen in which of the following types of
radiation-induced cancers? - Answers - ✔✔ skin
Why is limiting the maximum kilovoltage of the useful X-ray beam important when
performing exams employing an iodinated contrast media? - Answers - ✔✔ excessive
kilovoltage reduces the ability of the iodinated contrast media to attenuate the useful X-
ray beam
Antiversion of the femoral neck is overcome by a ____ when performing an AP
projection of the pelvis. - Answers - ✔✔ 15 to 20 degrees internal rotation of the toes
The following factors below will yield a beam intensity of 1200 photons/unit area at a
source to image receptor distance of 80": 70 kVp, 150 mA, 1/5 seconds, 2.0 mm focal
spot. What will be the resultant beam intensity if the same factors were to be used at a
40" source to image receptor distance? - Answers - ✔✔ 4800 photons/area
In a Compton interaction with matter, photons interact with _______ shell electrons? -
Answers - ✔✔ outer
QUESTIONS AND CORRECT
ANSWERS|AGRADE
An image that demonstrates low contrast can be caused from:
1. High mAs
2. Low kVp
3. Insufficient beam restriction - Answers - ✔✔ 3 only
Which of the following interactions with matter reduce contrast in an x-ray image? -
Answers - ✔✔ Compton scattering
From anatomical position, pronating the hand will result in the palm facing ____. -
Answers - ✔✔ Posteriorly
The maximum variation between consecutive exposures when using the same technical
factor is: - Answers - ✔✔ within 5%
An atom containing three protons and three neutrons in its nucleus has a (an): -
Answers - ✔✔ atomic number of 3
What term is applied to the level of medical asepsis that involves the destruction of
pathogens by using chemical materials? - Answers - ✔✔ Disinfection
Why is it important for a patient to have their knees flexed for an AP projection of the
lumbar spine? - Answers - ✔✔ to reduce the lordotic curvature of the lumbar spine and
open up the joint spaces
Which of the following is an accepted standard for networking medical devices to
exchange images and information regardless of the brand of equipment? - Answers -
✔✔ DICOM
The portion of the image intensifier device that is responsible for converting light
photons into free electrons is the: - Answers - ✔✔ photocathode
With increasing levels of beam filtration where will the greatest dose savings be
realized? - Answers - ✔✔ In the initial layers of tissue struck by the beam
What kind of fracture is this? - Answers - ✔✔ compound
, With all other technical factors remaining constant, what effect(s) will increasing
amounts of filtration have on the X-ray beam? 1. decrease patient skin exposure 2.
decrease the measurement of the shortest wavelength present within the beam
3. harden the X-ray beam
4. increase the percentage of beam penetration through the objects of interest -
Answers - ✔✔ 1, 3, and 4 only
Which of the following anatomic structures is best demonstrated in the LAO position
while performing a BE? - Answers - ✔✔ Splenic flexure
A bit depth of 9 will result in how many shades of gray? - Answers - ✔✔ 512 (2^9)
The bucky slot cover of a fluoroscopic unit must provide a minimum lead equivalent
absorption equal to ___mm of lead. - Answers - ✔✔ .25 mm
What should be the technologist's first response upon discovering a fire has broken out
in a patient holding area? - Answers - ✔✔ evacuate any patients from the area
The central ray is directed to a point 5 cm (2") distal to the ___ when performing an AP
projection of the scapula. - Answers - ✔✔ Coracoid process
A decrease in beam filtration will have what effect on radiographic image contrast? -
Answers - ✔✔ contrast will increase
The greatest spatial resolution will be seen with which of the following image matrix
sizes? - Answers - ✔✔ 2048x2048
A threshold dose-response relationship is seen in which of the following types of
radiation-induced cancers? - Answers - ✔✔ skin
Why is limiting the maximum kilovoltage of the useful X-ray beam important when
performing exams employing an iodinated contrast media? - Answers - ✔✔ excessive
kilovoltage reduces the ability of the iodinated contrast media to attenuate the useful X-
ray beam
Antiversion of the femoral neck is overcome by a ____ when performing an AP
projection of the pelvis. - Answers - ✔✔ 15 to 20 degrees internal rotation of the toes
The following factors below will yield a beam intensity of 1200 photons/unit area at a
source to image receptor distance of 80": 70 kVp, 150 mA, 1/5 seconds, 2.0 mm focal
spot. What will be the resultant beam intensity if the same factors were to be used at a
40" source to image receptor distance? - Answers - ✔✔ 4800 photons/area
In a Compton interaction with matter, photons interact with _______ shell electrons? -
Answers - ✔✔ outer
