fluoroscopy Practice Questions with 100% Correct
Answers
T/F: A fluoroscopic exposure cannot be made until the carriage is returned to the full beam
intercept position.
True
T/F: Fluoroscopic x-ray tubes are designed to operate for longer periods of time at much
lower mA, as compared to a typical diagnostic tube.
True
T/F: The anode of the image intensification system is positioned outside the glass envelope,
immediately in front of the output screen.
False
T/F: Flux gain is a measurement of the increase in light photons caused by conversion
efficiency of the output screen
True
T/F: Brightness gain deteriorates with use.
True
T/F: Most automatic brightness control systems monitor the current between the cathode
and the anode of the image intensifier to maintain fluoroscopic image density and contrast.
True
T/F: Most automatic brightness control systems have a relatively fast response time.
,False
T/F: Quantum mottle is blotchy or grainy appearance caused by excessive radiation to
create a uniform image.
False
T/F: A video monitor is an anode ray tube.
False
T/F: Video monitors can emit low energy x-rays.
True
T/F: The tabletop exposure rate should not exceed 10 R/min.
false
T/F: The minimum source-to-skin distance is 15" for stationary fluoroscopic equipment.
True
T/F: The minimum source-to-skin distance is 12" for mobile fluoroscopic equipment.
True
T/F: Magnification image intensifiers caused decreased patient dose.
False
T/F: The highest energy scatter from the patient during fluoroscopy occurs at a 45-degree
angle from the incident beam.
False
, Fluoroscopy is a ____________radiographic examination.
a. dynamic
b. static
c. diagnostic
d. more than one of the above
d. more than one of the above
Fluoroscopy is the domain of the ______________.
a. radiographer
b. radiologist
c. radiation physicist
d. radiography student
b. radiologist
Fluoroscopy is commonly used for observation of ______________.
a. the heart
b. a surgical procedure
c. the GI tract
d. all of the above
d. all of the above
The fluoroscopic x-ray tube and image receptor are mounted on a ___________________.
a. carriage
b. c-arm
Answers
T/F: A fluoroscopic exposure cannot be made until the carriage is returned to the full beam
intercept position.
True
T/F: Fluoroscopic x-ray tubes are designed to operate for longer periods of time at much
lower mA, as compared to a typical diagnostic tube.
True
T/F: The anode of the image intensification system is positioned outside the glass envelope,
immediately in front of the output screen.
False
T/F: Flux gain is a measurement of the increase in light photons caused by conversion
efficiency of the output screen
True
T/F: Brightness gain deteriorates with use.
True
T/F: Most automatic brightness control systems monitor the current between the cathode
and the anode of the image intensifier to maintain fluoroscopic image density and contrast.
True
T/F: Most automatic brightness control systems have a relatively fast response time.
,False
T/F: Quantum mottle is blotchy or grainy appearance caused by excessive radiation to
create a uniform image.
False
T/F: A video monitor is an anode ray tube.
False
T/F: Video monitors can emit low energy x-rays.
True
T/F: The tabletop exposure rate should not exceed 10 R/min.
false
T/F: The minimum source-to-skin distance is 15" for stationary fluoroscopic equipment.
True
T/F: The minimum source-to-skin distance is 12" for mobile fluoroscopic equipment.
True
T/F: Magnification image intensifiers caused decreased patient dose.
False
T/F: The highest energy scatter from the patient during fluoroscopy occurs at a 45-degree
angle from the incident beam.
False
, Fluoroscopy is a ____________radiographic examination.
a. dynamic
b. static
c. diagnostic
d. more than one of the above
d. more than one of the above
Fluoroscopy is the domain of the ______________.
a. radiographer
b. radiologist
c. radiation physicist
d. radiography student
b. radiologist
Fluoroscopy is commonly used for observation of ______________.
a. the heart
b. a surgical procedure
c. the GI tract
d. all of the above
d. all of the above
The fluoroscopic x-ray tube and image receptor are mounted on a ___________________.
a. carriage
b. c-arm
