Fluoroscopy Test Questions With Complete Solutions
. A digital fluoroscopy system with a 1024 x 1024 matrix size is
also called what? Correct Answers 1000 line system
. What are rods in the eye responsible for? Correct Answers
night vision
1. One frame of a TV image consists of how many lines Correct
Answers 525 nm
A fluoroscopic system is equipped with an automatic brightness
exposure control mechanism what happens to the exposer
factors and radiation dose when the patient is turned from a
supine to lateral position? Correct Answers Increase exposure
factors and increase patient dose
According to cosine law, where should the viewer sit in relation
to the workstation? Correct Answers Straight one
Dead pixels in an image detector will produce what type of
artifact? Correct Answers White images on the screen that have
nothing to do with the anatomy
During a 1 minute beam on time during fluoro exam the
technologist receives a radiation dose of 5 mrem standing 3 feet
from the table and the patient, what dose will the tech receive if
they step back to 6 feet and the beam on time is doubled to 2
minutes? Correct Answers 2.5 mrem
, During a C-arm fluoro procedure which the unit is in the lateral
position largest amount of scatter will be received by a person
standing on which side of the C-arm? Correct Answers Tube
side
During closed circuit TV monitoring 2 electron guns scan
synchronously where are they located? Correct Answers
Camera (CRT) and monitor
During fluoro exams a protective curtain or drape must be
present and positioned between the patient and fluoroscopist,
thickness of curtain must be at least Correct Answers .25
During non digital fluoroscopy at what MA range does the tube
typically operate at? Correct Answers 1-5 MA
For mobile fluoroscopic units source to skin distance by CA law
shall not be less than? Correct Answers 30cm
For stationary fluoro units source to skin distance by CA law
shall not be less than? Correct Answers 38cm
Give an example of an image recording system that captures and
photographs the image from the output phosphor of the Image
Intensifier? Correct Answers Cinefluorography and spot film
camera
Horizontal resolution on a TV image is determined by what?
Correct Answers Bandpass, the higher the band pass the higher
the resolution.
. A digital fluoroscopy system with a 1024 x 1024 matrix size is
also called what? Correct Answers 1000 line system
. What are rods in the eye responsible for? Correct Answers
night vision
1. One frame of a TV image consists of how many lines Correct
Answers 525 nm
A fluoroscopic system is equipped with an automatic brightness
exposure control mechanism what happens to the exposer
factors and radiation dose when the patient is turned from a
supine to lateral position? Correct Answers Increase exposure
factors and increase patient dose
According to cosine law, where should the viewer sit in relation
to the workstation? Correct Answers Straight one
Dead pixels in an image detector will produce what type of
artifact? Correct Answers White images on the screen that have
nothing to do with the anatomy
During a 1 minute beam on time during fluoro exam the
technologist receives a radiation dose of 5 mrem standing 3 feet
from the table and the patient, what dose will the tech receive if
they step back to 6 feet and the beam on time is doubled to 2
minutes? Correct Answers 2.5 mrem
, During a C-arm fluoro procedure which the unit is in the lateral
position largest amount of scatter will be received by a person
standing on which side of the C-arm? Correct Answers Tube
side
During closed circuit TV monitoring 2 electron guns scan
synchronously where are they located? Correct Answers
Camera (CRT) and monitor
During fluoro exams a protective curtain or drape must be
present and positioned between the patient and fluoroscopist,
thickness of curtain must be at least Correct Answers .25
During non digital fluoroscopy at what MA range does the tube
typically operate at? Correct Answers 1-5 MA
For mobile fluoroscopic units source to skin distance by CA law
shall not be less than? Correct Answers 30cm
For stationary fluoro units source to skin distance by CA law
shall not be less than? Correct Answers 38cm
Give an example of an image recording system that captures and
photographs the image from the output phosphor of the Image
Intensifier? Correct Answers Cinefluorography and spot film
camera
Horizontal resolution on a TV image is determined by what?
Correct Answers Bandpass, the higher the band pass the higher
the resolution.
