Fluoroscopy Study Guide UPDATED
ACTUAL Questions and CORRECT
Answers
Using fluoroscopy to position patients prior to taking routine radiographic films is______ by the
State of California, Radiologic Health Branch - CORRECT ANSWER - Prohibited
(T/F) Persons who have been instructed in the safe operation of fluoroscopic equipment must
demonstrate competency at their place of employment before they can operate fluoro equipment
- CORRECT ANSWER - True
Radiologists must hold: - CORRECT ANSWER - Radiology supervisor and operator
license
Physicians must hold: - CORRECT ANSWER - Fluoroscopy supervisor and operator
license
(directly/ indirectly) Fluoroscopic x-ray output, and patient dose, is _______ proportional to the
mA used. - CORRECT ANSWER - directly
Tube current for regular, non-digital fluoroscopy typically ranges between ___ to___ mA. -
CORRECT ANSWER - 1.0 - 5.0 mA
During non-digital spot filming, the mA utilized is typically: - CORRECT ANSWER -
Over 100 mA
During digital spot filming, the mA utilized is typically between ___ to ___ mA: - CORRECT
ANSWER - 1-100 mA
As field of view is reduced with tighter collimation,
, 1. image will become brighter
2. image will not become brighter
3. image quality will be improved
4. image quality will be reduced - CORRECT ANSWER - 2 and 3
Fluoroscopic table tilt for fixed units is ____degrees to the upright position and ___ degrees in
the Trendelenburg position. - CORRECT ANSWER - 90; 30.
The exposure rate measured at the panel or tabletop shall be as low as practicable and may not
exceed ____ rads per minute. This converts to _____ Gyt. - CORRECT ANSWER - 5 rads
; .05 Gyt
In fluoroscopic systems equipped with automatic brightness control and under the table x-ray
tube, as the image intensifier is moved away from the patient:
1. patient dose decreases
2. patient dose increases
3. more x-rays are intercepted at the image intensifier
4. fewer x-rays are intercepted at the image intensifier - CORRECT ANSWER - 2 and 4
a dead-man type fluoroscopic switch:
1. terminates the exposure when pressure is applied
2. terminates the exposure when pressure is released
3. can be operated by the foot switch - CORRECT ANSWER - 2 and 3
The blurring of the image as the fluoroscopic camera is moved rapidly during a procedure is
called _________ - CORRECT ANSWER - Tube Lag
A fall-off in brightness at the periphery (edges) of an image is called: - CORRECT
ANSWER - vignetting
ACTUAL Questions and CORRECT
Answers
Using fluoroscopy to position patients prior to taking routine radiographic films is______ by the
State of California, Radiologic Health Branch - CORRECT ANSWER - Prohibited
(T/F) Persons who have been instructed in the safe operation of fluoroscopic equipment must
demonstrate competency at their place of employment before they can operate fluoro equipment
- CORRECT ANSWER - True
Radiologists must hold: - CORRECT ANSWER - Radiology supervisor and operator
license
Physicians must hold: - CORRECT ANSWER - Fluoroscopy supervisor and operator
license
(directly/ indirectly) Fluoroscopic x-ray output, and patient dose, is _______ proportional to the
mA used. - CORRECT ANSWER - directly
Tube current for regular, non-digital fluoroscopy typically ranges between ___ to___ mA. -
CORRECT ANSWER - 1.0 - 5.0 mA
During non-digital spot filming, the mA utilized is typically: - CORRECT ANSWER -
Over 100 mA
During digital spot filming, the mA utilized is typically between ___ to ___ mA: - CORRECT
ANSWER - 1-100 mA
As field of view is reduced with tighter collimation,
, 1. image will become brighter
2. image will not become brighter
3. image quality will be improved
4. image quality will be reduced - CORRECT ANSWER - 2 and 3
Fluoroscopic table tilt for fixed units is ____degrees to the upright position and ___ degrees in
the Trendelenburg position. - CORRECT ANSWER - 90; 30.
The exposure rate measured at the panel or tabletop shall be as low as practicable and may not
exceed ____ rads per minute. This converts to _____ Gyt. - CORRECT ANSWER - 5 rads
; .05 Gyt
In fluoroscopic systems equipped with automatic brightness control and under the table x-ray
tube, as the image intensifier is moved away from the patient:
1. patient dose decreases
2. patient dose increases
3. more x-rays are intercepted at the image intensifier
4. fewer x-rays are intercepted at the image intensifier - CORRECT ANSWER - 2 and 4
a dead-man type fluoroscopic switch:
1. terminates the exposure when pressure is applied
2. terminates the exposure when pressure is released
3. can be operated by the foot switch - CORRECT ANSWER - 2 and 3
The blurring of the image as the fluoroscopic camera is moved rapidly during a procedure is
called _________ - CORRECT ANSWER - Tube Lag
A fall-off in brightness at the periphery (edges) of an image is called: - CORRECT
ANSWER - vignetting
