California Fluoroscopy Test Exam
Questions and Answers (Most Recent
Version, Complete Study Material)
An image intensifiers photocathode causes ___ to be given off
in direct proportion to the intensity of the fluorescent light:
a. remnant radiation
b. electrons
c. x-rays
d. light photons - Correct Answers ✅electrons
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 - Correct Answers ✅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 - Correct Answers ✅2, 3, and 4
Geometric factors in the shape of the image intensification
tube
,California Fluoroscopy Test Exam
Questions and Answers (Most Recent
Version, Complete Study Material)
b. Focal-film-distance (FFD)
c. Object-to-image distance (OID)
d. Minification gain - Correct Answers ✅...
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 - Correct Answers ✅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
4. increasing the number of available x-ray photons - Correct
Answers ✅All of the above
During a fluoroscopic exam, the main source of scattered
radiation is produced from:
a. the patient
b. x-ray source
,California Fluoroscopy Test Exam
Questions and Answers (Most Recent
Version, Complete Study Material)
c. table top
d. leakage radiation - Correct Answers ✅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 -
Correct Answers ✅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
d. At all times - Correct Answers ✅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
, California Fluoroscopy Test Exam
Questions and Answers (Most Recent
Version, Complete Study Material)
3. Nearly all cine-fluorography exams involve studies of the
GI system
4. Delivers approximately the same dose as routine
photospot image recording - Correct Answers ✅2 only
The exposure rate at the tabletop may not exceed five rads
per minute except:
1. when using the ABC on large patients
2. during magnification mode
3. where higher exposure rates are allowed - Correct
Answers ✅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 - Correct
Answers ✅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
Questions and Answers (Most Recent
Version, Complete Study Material)
An image intensifiers photocathode causes ___ to be given off
in direct proportion to the intensity of the fluorescent light:
a. remnant radiation
b. electrons
c. x-rays
d. light photons - Correct Answers ✅electrons
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 - Correct Answers ✅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 - Correct Answers ✅2, 3, and 4
Geometric factors in the shape of the image intensification
tube
,California Fluoroscopy Test Exam
Questions and Answers (Most Recent
Version, Complete Study Material)
b. Focal-film-distance (FFD)
c. Object-to-image distance (OID)
d. Minification gain - Correct Answers ✅...
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 - Correct Answers ✅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
4. increasing the number of available x-ray photons - Correct
Answers ✅All of the above
During a fluoroscopic exam, the main source of scattered
radiation is produced from:
a. the patient
b. x-ray source
,California Fluoroscopy Test Exam
Questions and Answers (Most Recent
Version, Complete Study Material)
c. table top
d. leakage radiation - Correct Answers ✅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 -
Correct Answers ✅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
d. At all times - Correct Answers ✅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
, California Fluoroscopy Test Exam
Questions and Answers (Most Recent
Version, Complete Study Material)
3. Nearly all cine-fluorography exams involve studies of the
GI system
4. Delivers approximately the same dose as routine
photospot image recording - Correct Answers ✅2 only
The exposure rate at the tabletop may not exceed five rads
per minute except:
1. when using the ABC on large patients
2. during magnification mode
3. where higher exposure rates are allowed - Correct
Answers ✅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 - Correct
Answers ✅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
