ARRT Registry Review Question and answers 100% verified
Which radiographic procedure is contraindicated in a patient who has
increased intracranial pressure? - correct answer Myelography
Where is the central ray directed in an anteroposterior (AP) axial inlet
projection of the pelvis? - correct answer Midline point at the level of the
anterior superior iliac spine
What projection is used for observing the intervertebral foramina to
examine an injury in a patient's neck? - correct answer Lateral
When using contrast media for myelography, what precautions should be
taken by the radiologic technologist? - correct answer Check the contrast
vial with the physician
Check the contrast vial at least three times
Ensure the vial contains nonionic contrast media
On average, how many bones are present in an adult vertebral column? -
correct answer 26
Which position is used to assess mobility of a spinal fusion site? - correct
answer Lateral positions-hyperextension and hyperflexion
What projection is used for observing the intervertebral foramina to
examine an injury in a patient's neck? - correct answer AP axial oblique
projection of the cervical spine
,Which position helps prevent the contrast medium from moving into the
cerebral ventricles during myelography? - correct answer Acute extension
of the head
What type of x-rays are produced when a projectile electron is slowed by
the nuclear field of a target atom nucleus? - correct answer
Bremsstrahlung x-rays
What can be inferred from the number of electrons present in the outermost
shell of an atom? - correct answer The number determines the valance of
the atom.
How is electrical potential energy measured in radiology? - correct answer
Electron volt (ev)
What is scatter radiation? - correct answer Radiation resulting from
interaction with patient
How many neutrons does an atom with an atomic number of 20 and an
atomic mass number of 40 contain? - correct answer 20
What is indicated by the term "kvp" in imaging systems? - correct answer
The penetration power of an x-ray beam
Which is the term used to refer to the distance between two crests or two
troughs in a sine wave? - correct answer wavelength
The quantity of electrons for x-ray exposure is determined by the mas. How
is this calculated? - correct answer Multiplying the milliamperage by the
exposure time
, What happens during x-ray attenuation? - correct answer Some x-rays are
absorbed, and the others are scattered.
Which specialty uses a nonionizing form of radiation? - correct answer
Sonography, MRI
For pair production to occur, the energy of the incoming x-ray photon must
be at least what? - correct answer 1.02 mev
Which material requires a high potential for electrification and shows
extremely high resistance to act as an insulator? - correct answer Glass
The electrical energy supplied to the X-ray tube is converted into what form
of energy for the production of x-rays? - correct answer Electromagnetic
energy
What is the energy conversion principle in an x-ray imaging system? -
correct answer Electrical energy is converted into thermal energy.
Which unit is used to denote electric potential? - correct answer volts
Which type of energy is a patient exposed to in an x-ray? - correct answer
Electromagnetic energy
What type of x-rays result when the target atom is ionized through total
removal of an inner-shell electron? - correct answer Characteristic x-rays
Which radiographic procedure is contraindicated in a patient who has
increased intracranial pressure? - correct answer Myelography
Where is the central ray directed in an anteroposterior (AP) axial inlet
projection of the pelvis? - correct answer Midline point at the level of the
anterior superior iliac spine
What projection is used for observing the intervertebral foramina to
examine an injury in a patient's neck? - correct answer Lateral
When using contrast media for myelography, what precautions should be
taken by the radiologic technologist? - correct answer Check the contrast
vial with the physician
Check the contrast vial at least three times
Ensure the vial contains nonionic contrast media
On average, how many bones are present in an adult vertebral column? -
correct answer 26
Which position is used to assess mobility of a spinal fusion site? - correct
answer Lateral positions-hyperextension and hyperflexion
What projection is used for observing the intervertebral foramina to
examine an injury in a patient's neck? - correct answer AP axial oblique
projection of the cervical spine
,Which position helps prevent the contrast medium from moving into the
cerebral ventricles during myelography? - correct answer Acute extension
of the head
What type of x-rays are produced when a projectile electron is slowed by
the nuclear field of a target atom nucleus? - correct answer
Bremsstrahlung x-rays
What can be inferred from the number of electrons present in the outermost
shell of an atom? - correct answer The number determines the valance of
the atom.
How is electrical potential energy measured in radiology? - correct answer
Electron volt (ev)
What is scatter radiation? - correct answer Radiation resulting from
interaction with patient
How many neutrons does an atom with an atomic number of 20 and an
atomic mass number of 40 contain? - correct answer 20
What is indicated by the term "kvp" in imaging systems? - correct answer
The penetration power of an x-ray beam
Which is the term used to refer to the distance between two crests or two
troughs in a sine wave? - correct answer wavelength
The quantity of electrons for x-ray exposure is determined by the mas. How
is this calculated? - correct answer Multiplying the milliamperage by the
exposure time
, What happens during x-ray attenuation? - correct answer Some x-rays are
absorbed, and the others are scattered.
Which specialty uses a nonionizing form of radiation? - correct answer
Sonography, MRI
For pair production to occur, the energy of the incoming x-ray photon must
be at least what? - correct answer 1.02 mev
Which material requires a high potential for electrification and shows
extremely high resistance to act as an insulator? - correct answer Glass
The electrical energy supplied to the X-ray tube is converted into what form
of energy for the production of x-rays? - correct answer Electromagnetic
energy
What is the energy conversion principle in an x-ray imaging system? -
correct answer Electrical energy is converted into thermal energy.
Which unit is used to denote electric potential? - correct answer volts
Which type of energy is a patient exposed to in an x-ray? - correct answer
Electromagnetic energy
What type of x-rays result when the target atom is ionized through total
removal of an inner-shell electron? - correct answer Characteristic x-rays
