Chapter 19 Fluoroscopy-Bushong Test Bank

Chapter 19 Fluoroscopy Bushong: Radiologic Science for Technologists



MULTIPLE CHOICE


1. Fluoroscopy was developed so that radiologists could view images. a.
sta c
b. dynamic
c. magni ed
d. darkened




ANS: B
Fluoroscopy was developed so that radiologists could view dynamic images.



2. What is the milliamperage used during uoroscopy?
a. £100 mA
b. £50 mA
c. £5 mA
d. £1 mA




ANS: C
During uoroscopy, the x-ray tube is operated at less than 5 mA.




c.
d.




ANS:

, 3. The image intensi er improved uoroscopy by increasing image . a.
brightness
b. resolu on
c. magni ca on
d. contrast
ANS: A
The image intensi er improved uoroscopy by increasing image brightness.



4. Image intensi ed uoroscopy is performed at illumina on levels similar to . a. star gazing
b. darkened theaters
c. night driving
d. radiograph viewing




ANS: D
Image intensi ed uoroscopy is performed at illumina on levels similar to radiograph
viewing.
5. Visual acuity in the eye is greatest at the , where are concentrated. a. re nal
periphery; cones
b. fovea centralis; cones
c. re nal periphery; rods
d. fovea centralis; rods




ANS: B
Visual acuity in the eye is greatest at the fovea centralis, where cones are concentrated.


c.
d.




ANS:

, 6. The ability of the eye to detect di2erences in brightness levels is termed . a.
visual acuity
b. scotopic vision
photopic vision
contrast percep on




D

The ability of the eye to detect di2erences in brightness levels is termed contrast percep on.



7. The in the re na are s mulated by light; the are s mulated by light.
a. rods; bright; cones; low
b. rods; low; cones; low
c. rods; low; cones; bright
d. rods; bright; cones; bright




ANS: C
The rods in the re na are s mulated by low light; the cones are s mulated by bright light.



8. With image intensi ca on the light level is raised to vision. a. photopic
b. scotopic
c. night
d. twilight



c.
d.




ANS: