FLUOROSCOPY ARRT STUDY GUIDE 2026
EXAM QUESTIONS AND VERIFIED
ANSWERS GUARANTEED A+
⩥ Adaptation Time. Answer: The time it takes for the human eye to
adjust to the low light levels of conventional fluro is called
⩥ 25 kV (pg. 17 - the potential maintained by the accelerating anode in
the image intensifier). Answer: The operating potential of most modern
image intensifier tubes is approximately:
⩥ Minification ratio. Answer: The squared ratio of the input to output
screen diameter in an image intensifier tube is termed:
⩥ 2.25 (9^2)/(6^2). Answer: When changing from a 9" input phosphor
to a 6", you must increase your exposure factor by ___ times.
⩥ A. 1-5 mA. Answer: The normal mA used for image intensified fluoro
is about:
A. 1-5 mA
B. 6-10 mA
C. 25-100 mA
,D. 100-600 mA
⩥ D) conversion factor
- conversion factor is used in the periodic check of brightness gain, since
BG can deteriorate as much as 10% yearly due to the "aging" of the
input and output screen phosphors. It's calculated as the [intensity of
output phosphor] / input exposure rate. Answer: A standardized method
of evaluating the light emission of an image intensifier is called:
A) brightness gain
B) relative aperture
C) signal to noise ratio
D) conversion factor
⩥ D) all of the above. Answer: The brightness gain (image brightness)
of an image intensifier can be increased by increasing the:
A) exposure rate to the input screen
B) minification ratio
C) acceleration potential of the tube (kVp)
D) all of the above
⩥ A) improved image quality
, - there is MORE minification gain, and HIGHER patient dose with
automatic brightness control to compensate for the decreased brightness.
Answer: The principle advantage of the smaller field of the dual field
image intensifier is:
A) improved image quality
B) less minification gain
C) lower patient dose
D) all of the above
⩥ A) phototopic (cone) vision. Answer: The part of the eyes that detect
small object details are:
A) phototopic (cone) vision
B) scotopic (rod) vision
⩥ D) decrease pt skin dose. Answer: During an image intensified fluoro
study (manual mode), an increase in kilovoltage will
A) lower penetration
B) increase pt's dose
C)improve image contrast
D) decrease pt skin dose
⩥ C)electronic intensification
EXAM QUESTIONS AND VERIFIED
ANSWERS GUARANTEED A+
⩥ Adaptation Time. Answer: The time it takes for the human eye to
adjust to the low light levels of conventional fluro is called
⩥ 25 kV (pg. 17 - the potential maintained by the accelerating anode in
the image intensifier). Answer: The operating potential of most modern
image intensifier tubes is approximately:
⩥ Minification ratio. Answer: The squared ratio of the input to output
screen diameter in an image intensifier tube is termed:
⩥ 2.25 (9^2)/(6^2). Answer: When changing from a 9" input phosphor
to a 6", you must increase your exposure factor by ___ times.
⩥ A. 1-5 mA. Answer: The normal mA used for image intensified fluoro
is about:
A. 1-5 mA
B. 6-10 mA
C. 25-100 mA
,D. 100-600 mA
⩥ D) conversion factor
- conversion factor is used in the periodic check of brightness gain, since
BG can deteriorate as much as 10% yearly due to the "aging" of the
input and output screen phosphors. It's calculated as the [intensity of
output phosphor] / input exposure rate. Answer: A standardized method
of evaluating the light emission of an image intensifier is called:
A) brightness gain
B) relative aperture
C) signal to noise ratio
D) conversion factor
⩥ D) all of the above. Answer: The brightness gain (image brightness)
of an image intensifier can be increased by increasing the:
A) exposure rate to the input screen
B) minification ratio
C) acceleration potential of the tube (kVp)
D) all of the above
⩥ A) improved image quality
, - there is MORE minification gain, and HIGHER patient dose with
automatic brightness control to compensate for the decreased brightness.
Answer: The principle advantage of the smaller field of the dual field
image intensifier is:
A) improved image quality
B) less minification gain
C) lower patient dose
D) all of the above
⩥ A) phototopic (cone) vision. Answer: The part of the eyes that detect
small object details are:
A) phototopic (cone) vision
B) scotopic (rod) vision
⩥ D) decrease pt skin dose. Answer: During an image intensified fluoro
study (manual mode), an increase in kilovoltage will
A) lower penetration
B) increase pt's dose
C)improve image contrast
D) decrease pt skin dose
⩥ C)electronic intensification
