1
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California Fluoroscopy Test Questions and
Answers (100% Correct Answers) Already
Graded A+
An image intensifiers photocathode causes ___ to be given off in
direct proportion to the intensity of the fluorescent light:
a. remnant radiation
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b. electrons
c. x-rays
d. light photons—Ans: electrons
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What fluoroscopic television system device decodes the video
signal into a visible image?
a. Vidicon camera
b. Camera control unit
c. Television monitor
d. Electron gun—Ans: Television Monitor
Which of the following materials are used in the construction of a
fluoroscopic tabletop?
1. Lead
2. Aluminum
3. Bakelite
4. Carbon fiber—Ans: 2, 3, and 4
Geometric factors in the shape of the image intensification tube
b. Focal-film-distance (FFD)
c. Object-to-image distance (OID)
d. Minification gain—Ans: ...
, 2
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If the entrance skin dose is measured from the surface of the
tabletop, the x-ray source is located:
a. either over or under the table
b. under the table
c. over the table
d. not enough information provided—Ans: b. Under the table
The mottle level of an image can be adjusted by:
1. changing mA
2. changing kVp
3. changing the exposure factors
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4. increasing the number of available x-ray photons—Ans: All of
the above
During a fluoroscopic exam, the main source of scattered
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radiation is produced from:
a. the patient
b. x-ray source
c. table top
d. leakage radiation—Ans: the patient
Excessive lighting in the fluoroscopy room:
a. Helps to perceive a dim image as brighter
b. Helps to properly adjust the overall luminance of the TV image
c. Enhances visualization of a black and white TV image
d. May result in increasing the technical operating factors—Ans:
May result in increasing the technical operating factors
Suitable gonad shields must be used:
a. Whenever gonads are within the useful x-raybeam
b. When shielding of gonads does not interfere with the diagnosis
c. On all potentially procreative patients
, 3
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d. At all times—Ans: When shielding of gonads does not interfere
with the diagnosis
Which of the following are true concerning cine film?
1. Available film sizes are: 70 mm, 100 mm, and 110 mm
2. The larger the film size the better the image quality
3. Nearly all cine-fluorography exams involve studies of the GI
system
4. Delivers approximately the same dose as routine photospot
image recording—Ans: 2 only
The exposure rate at the tabletop may not exceed five rads per
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minute except:
1. when using the ABC on large patients
2. during magnification mode
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3. where higher exposure rates are allowed—Ans: b. 1, 2 and 3
only
Images produced with photo spot film cameras ___ spot films
taken with conventional cassettes.
1. use a higher mA than
2. require about 1/2 to 1/3 the dose of
3. exhibit superior image quality compared to—Ans: require
about 1/2 to 1/3 the dose
The ability of an imaging system to differentiate small objects that
are closely spaced as separate objects is referred to as:
a. Differentiation
b. Resolution
c. Statistical fluctuation
d. Detector contrast—Ans: b. Resolution
The photoconductive target in a television camera pick-up tube:
a. Conducts electrons across to the target
, 4
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b. Allows a proportional electron charge to be generated at a
particular position
c. Creates a video signal
d. Creates an electronic current which is converted into a video
image
.—Ans: Allows a proportional electron charge to be generated at
a particular position
Size distortion is primarily caused by:
a. Focal-film-distance (FFD)
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b. Geometric factors in the shape of the image intensification
tube
c. Minification gain
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d. Object-to-image distance (OID)—Ans: Object-to-image
distance (OID)
The overall luminescence of the TV image may be properly
adjusted by:
1. increasing room lighting
2. adjusting the contrast control button on the TV monitor
3. adjusting the brightness control button on the TV monitor—Ans:
2 and 3 only
Which of the following statements is true concerning fluoroscopic
grids?
a. Reduces scattered radiation produced in the image intensifier
b. The typical grid ratio is 12:1
c. High ratio grids are preferred
d. Located between the patient and input layer of the image
intensifier—Ans: Located between the patient and input layer of
the image intensifier
For Expert help and assignment solutions, +254707240657
California Fluoroscopy Test Questions and
Answers (100% Correct Answers) Already
Graded A+
An image intensifiers photocathode causes ___ to be given off in
direct proportion to the intensity of the fluorescent light:
a. remnant radiation
© 2025 Assignment Expert
b. electrons
c. x-rays
d. light photons—Ans: electrons
Guru01 - Stuvia
What fluoroscopic television system device decodes the video
signal into a visible image?
a. Vidicon camera
b. Camera control unit
c. Television monitor
d. Electron gun—Ans: Television Monitor
Which of the following materials are used in the construction of a
fluoroscopic tabletop?
1. Lead
2. Aluminum
3. Bakelite
4. Carbon fiber—Ans: 2, 3, and 4
Geometric factors in the shape of the image intensification tube
b. Focal-film-distance (FFD)
c. Object-to-image distance (OID)
d. Minification gain—Ans: ...
, 2
For Expert help and assignment solutions, +254707240657
If the entrance skin dose is measured from the surface of the
tabletop, the x-ray source is located:
a. either over or under the table
b. under the table
c. over the table
d. not enough information provided—Ans: b. Under the table
The mottle level of an image can be adjusted by:
1. changing mA
2. changing kVp
3. changing the exposure factors
© 2025 Assignment Expert
4. increasing the number of available x-ray photons—Ans: All of
the above
During a fluoroscopic exam, the main source of scattered
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radiation is produced from:
a. the patient
b. x-ray source
c. table top
d. leakage radiation—Ans: the patient
Excessive lighting in the fluoroscopy room:
a. Helps to perceive a dim image as brighter
b. Helps to properly adjust the overall luminance of the TV image
c. Enhances visualization of a black and white TV image
d. May result in increasing the technical operating factors—Ans:
May result in increasing the technical operating factors
Suitable gonad shields must be used:
a. Whenever gonads are within the useful x-raybeam
b. When shielding of gonads does not interfere with the diagnosis
c. On all potentially procreative patients
, 3
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d. At all times—Ans: When shielding of gonads does not interfere
with the diagnosis
Which of the following are true concerning cine film?
1. Available film sizes are: 70 mm, 100 mm, and 110 mm
2. The larger the film size the better the image quality
3. Nearly all cine-fluorography exams involve studies of the GI
system
4. Delivers approximately the same dose as routine photospot
image recording—Ans: 2 only
The exposure rate at the tabletop may not exceed five rads per
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minute except:
1. when using the ABC on large patients
2. during magnification mode
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3. where higher exposure rates are allowed—Ans: b. 1, 2 and 3
only
Images produced with photo spot film cameras ___ spot films
taken with conventional cassettes.
1. use a higher mA than
2. require about 1/2 to 1/3 the dose of
3. exhibit superior image quality compared to—Ans: require
about 1/2 to 1/3 the dose
The ability of an imaging system to differentiate small objects that
are closely spaced as separate objects is referred to as:
a. Differentiation
b. Resolution
c. Statistical fluctuation
d. Detector contrast—Ans: b. Resolution
The photoconductive target in a television camera pick-up tube:
a. Conducts electrons across to the target
, 4
For Expert help and assignment solutions, +254707240657
b. Allows a proportional electron charge to be generated at a
particular position
c. Creates a video signal
d. Creates an electronic current which is converted into a video
image
.—Ans: Allows a proportional electron charge to be generated at
a particular position
Size distortion is primarily caused by:
a. Focal-film-distance (FFD)
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b. Geometric factors in the shape of the image intensification
tube
c. Minification gain
Guru01 - Stuvia
d. Object-to-image distance (OID)—Ans: Object-to-image
distance (OID)
The overall luminescence of the TV image may be properly
adjusted by:
1. increasing room lighting
2. adjusting the contrast control button on the TV monitor
3. adjusting the brightness control button on the TV monitor—Ans:
2 and 3 only
Which of the following statements is true concerning fluoroscopic
grids?
a. Reduces scattered radiation produced in the image intensifier
b. The typical grid ratio is 12:1
c. High ratio grids are preferred
d. Located between the patient and input layer of the image
intensifier—Ans: Located between the patient and input layer of
the image intensifier
