GXMO REVIEW EXAM QUESTIONS
AND ANSWERS62
A curie is the equivalent of - ANSWERS-1.000 millicuries
X rays and gamma rays always travel - ANSWERS-straight lines
Atoms, molecules, and various subatomic particles which carry either a positive or negative
electrical charge are called - ANSWERS-ions
Short wavelength electromagnetic radiation produced during the disintegration of nuclei or
radioactive substances is called - ANSWERS-Gamma radiation
Fluoroscopy differs from radiography in that: - ANSWERS-The X-ray image is observed visually on
a fluorescent screen rather than recorded on a film
High freq and short wavelength rays are best able to penetrate opaque materials. - ANSWERS-
true
the fixer solution serves to both remove unexposed silver bromide grains and to harden the
emulsion layer - ANSWERS-true
As the kilovoltage applied to the X-ray tube is raised: - ANSWERS-X rays of shorter wavelength
and more penetrating power are produce
Photons are tiny particles of matter traveling at the speed of light - ANSWERS-false
,The metal that forms the image on a n X-ray film is: - ANSWERS-silver
Which particles occupy the orbitals surrounding the nucleus? - ANSWERS-Electrons
Which of the following correctly organizes the items from smallest (left) to largest (right)? -
ANSWERS-Electron, neutron, atom, cell
What fundamental building block makes up all matter in the universe? - ANSWERS-Atoms
What three particles make up an atom? # - ANSWERS-protons, neutrons, electrons
What two particles compose the nucleus of an atom? - ANSWERS-neutron and electron
Structures containing air will be black, and muscle, fat, and fluid will appear as shades of gray -
ANSWERS-true
The American Registry of Radiologic Technologists (ARRT) was put in place to - ANSWERS-
established standards and examinations to certify technologists. and maintains a lists of
registered technologists.
The American Society of Radiologic Technologists (ASRT) are a - ANSWERS-Professional
organization continuing education promoting research and guidelines for radiography
instruction
The A.L.A.R.A concept.... - ANSWERS-1. All exposure must have a benefit
2. All exposures ALARA
3. Dose levels should remain below
4. Maximum allowed
,5. (Ten Commandments)
Position patient and equipment for procedure (Digital) - ANSWERS-positions patient body part
positions image receptor
positions x-ray machine
Apply lead shielding to protect patient
What are some of the duties of a limited radiography+ - ANSWERS-Evaluate radiographic images
and send to physician for interpretation
Ensure that all anatomy is included
ensure image is of acceptable quality
Thank the patient and give final instruction
escort patient to exit
A limited radiographer operates in what manner - ANSWERS-operates in an ethical and legal
environment based upon the health care worker- patient relationship
being considerate, respectful, and maintaining patients privacy
What is a Control panel - ANSWERS-The portion of the x-ray unit that contains the master
switch, the indicator light, the selector buttons, and the exposure button.
The light box helps by doing what - ANSWERS-marking films after exposure but before
processing
What form does some radiation go through the patient - ANSWERS-absorbed, scattered,
transmitted
, Image receptor is what kind of devices - ANSWERS-The device that receives the energy of the x-
ray beam and forms the image of the body part
Scatter radiation ( on a x-ray table) is what - ANSWERS-A form of secondary radiation that occurs
when an x-ray beam has been deflected from its path by interaction with matter is called
Digital systems operate at what speed class? - ANSWERS-have a much wider dynamic range
(latitude) than film screen systems resulting in fewer retakes
What is a range of exposures the imaging system can receive and render as an image tone # -
ANSWERS-digital receptors
What does digitization / to digitize do - ANSWERS--assign a number to each pixel-assign a shade
of grey to each number
What has continuous variation with infinite possible values - ANSWERS-analog information
What is a area of unsharpness at each image border due to focal spot source of radiation.i.e.
soft tissues edges around # - ANSWERS-penumbra
What is caused by movement of the x-ray tube, the pt or IR during exposure-voluntary and
involuntary motion - ANSWERS-motion unsharpness
If the increase in kVp what happen to attenuation # - ANSWERS-it is decrease
What does differential attenuation mean - ANSWERS-each tissue attenuates the beam
differently or absorb radiation differently
A variation in beam density as it passes thru pt is called what - ANSWERS-subject contrast
AND ANSWERS62
A curie is the equivalent of - ANSWERS-1.000 millicuries
X rays and gamma rays always travel - ANSWERS-straight lines
Atoms, molecules, and various subatomic particles which carry either a positive or negative
electrical charge are called - ANSWERS-ions
Short wavelength electromagnetic radiation produced during the disintegration of nuclei or
radioactive substances is called - ANSWERS-Gamma radiation
Fluoroscopy differs from radiography in that: - ANSWERS-The X-ray image is observed visually on
a fluorescent screen rather than recorded on a film
High freq and short wavelength rays are best able to penetrate opaque materials. - ANSWERS-
true
the fixer solution serves to both remove unexposed silver bromide grains and to harden the
emulsion layer - ANSWERS-true
As the kilovoltage applied to the X-ray tube is raised: - ANSWERS-X rays of shorter wavelength
and more penetrating power are produce
Photons are tiny particles of matter traveling at the speed of light - ANSWERS-false
,The metal that forms the image on a n X-ray film is: - ANSWERS-silver
Which particles occupy the orbitals surrounding the nucleus? - ANSWERS-Electrons
Which of the following correctly organizes the items from smallest (left) to largest (right)? -
ANSWERS-Electron, neutron, atom, cell
What fundamental building block makes up all matter in the universe? - ANSWERS-Atoms
What three particles make up an atom? # - ANSWERS-protons, neutrons, electrons
What two particles compose the nucleus of an atom? - ANSWERS-neutron and electron
Structures containing air will be black, and muscle, fat, and fluid will appear as shades of gray -
ANSWERS-true
The American Registry of Radiologic Technologists (ARRT) was put in place to - ANSWERS-
established standards and examinations to certify technologists. and maintains a lists of
registered technologists.
The American Society of Radiologic Technologists (ASRT) are a - ANSWERS-Professional
organization continuing education promoting research and guidelines for radiography
instruction
The A.L.A.R.A concept.... - ANSWERS-1. All exposure must have a benefit
2. All exposures ALARA
3. Dose levels should remain below
4. Maximum allowed
,5. (Ten Commandments)
Position patient and equipment for procedure (Digital) - ANSWERS-positions patient body part
positions image receptor
positions x-ray machine
Apply lead shielding to protect patient
What are some of the duties of a limited radiography+ - ANSWERS-Evaluate radiographic images
and send to physician for interpretation
Ensure that all anatomy is included
ensure image is of acceptable quality
Thank the patient and give final instruction
escort patient to exit
A limited radiographer operates in what manner - ANSWERS-operates in an ethical and legal
environment based upon the health care worker- patient relationship
being considerate, respectful, and maintaining patients privacy
What is a Control panel - ANSWERS-The portion of the x-ray unit that contains the master
switch, the indicator light, the selector buttons, and the exposure button.
The light box helps by doing what - ANSWERS-marking films after exposure but before
processing
What form does some radiation go through the patient - ANSWERS-absorbed, scattered,
transmitted
, Image receptor is what kind of devices - ANSWERS-The device that receives the energy of the x-
ray beam and forms the image of the body part
Scatter radiation ( on a x-ray table) is what - ANSWERS-A form of secondary radiation that occurs
when an x-ray beam has been deflected from its path by interaction with matter is called
Digital systems operate at what speed class? - ANSWERS-have a much wider dynamic range
(latitude) than film screen systems resulting in fewer retakes
What is a range of exposures the imaging system can receive and render as an image tone # -
ANSWERS-digital receptors
What does digitization / to digitize do - ANSWERS--assign a number to each pixel-assign a shade
of grey to each number
What has continuous variation with infinite possible values - ANSWERS-analog information
What is a area of unsharpness at each image border due to focal spot source of radiation.i.e.
soft tissues edges around # - ANSWERS-penumbra
What is caused by movement of the x-ray tube, the pt or IR during exposure-voluntary and
involuntary motion - ANSWERS-motion unsharpness
If the increase in kVp what happen to attenuation # - ANSWERS-it is decrease
What does differential attenuation mean - ANSWERS-each tissue attenuates the beam
differently or absorb radiation differently
A variation in beam density as it passes thru pt is called what - ANSWERS-subject contrast
