REVIEW UPDATED Exam Questions and
CORRECT Answers
Photoelectric interaction - CORRECT ANSWER - Complete absorption of the diagnostic
range x-ray photon is the interaction known as:
An inner-shell electron - CORRECT ANSWER - The photoelectric interaction involves
removal of
Reduced to zero - CORRECT ANSWER - With the photoelectric interaction, after the
incident photon ejects an inner-shell electron, the energy of the photon is
The Compton effect - CORRECT ANSWER - Scattering in the diagnostic range is due to
The percentage of Compton interactions increases - CORRECT ANSWER - At higher
kilovoltages within the diagnostic range
Expose people near the patient, increase patient exposure, contributes no useful information if it
strikes the IR - CORRECT ANSWER - Scatter radiation may
x-rays leaving the patient that did not interact with atoms - CORRECT ANSWER -
Transmission refers to
more x-ray photons reaching the IR - CORRECT ANSWER - Decreased attenuation
results in
50% - CORRECT ANSWER - For every 4-5cm of tissue, the x-ray beam quantity is
reduced by approximately
, fewer x-ray photons reaching the IR - CORRECT ANSWER - Imaging a thicker part
results in
decreased attenuation - CORRECT ANSWER - Imaging tissues with lower atomic
numbers results in
brighter - CORRECT ANSWER - Tissues with higher atomic numbers appear _________
on a digital image.
Air in the lungs - CORRECT ANSWER - Imaging which of the following results in the
least attenuation?
film-screen and digital - CORRECT ANSWER - Production of a static or still image is
associated with
dynamic imaging - CORRECT ANSWER - Fluoroscopy produces
converts light to electrons - CORRECT ANSWER - In the image intensifier, the
photocathode
focus the electrons - CORRECT ANSWER - In the image intensifier, the electrostatic
lenses
Latent/invisible - CORRECT ANSWER - Before processing, the IR has a(n)_________
image.
Stomach and esophagus - CORRECT ANSWER - An example of an anatomic structure
typically imaged with fluoroscopy is the
IV remnant radiation is converted to light, II light energy is converted to electrons, I electrons are
accelerated toward anode, III electrons strike phosphor and are converted to light - CORRECT