California Fluoroscopy State
Board Exam |457 Q’s and A’s
What digital fluoroscopic imaging technique utilizes changing masks, which
provides information of changes in contrast media content within a structure
1.Time interval difference imaging
2. Mask mode fluoroscopy
3. K -edge fluoroscopy
4. Synchronized fluoroscopy - -1. Time interval difference imaging
- All of the following will directly influence the table-top exposure rate
except
1. Light in the fluoroscopy room
2. kVp
3. Target to panel distance
4. Filtration - -1. Light in the fluoroscopy room
- Attenuation of a radiation beam's intensity as it passes through an
absorber is governed by
1. Time
2. The specific mediums density
3. The energy of the radiation
4. The thickness of the absorber traversed - -2. The specific mediums
density
3. The energy or radiation
4. The thickness of the absorber traversed
- What recording medium will result in the least recorded resolution
1. Spot films using a spot film camera
2. video tape recording
3. spot films using conventional cassettes
4. video disc recording - -2. video tape recording
- During the period when an individual receives an occupational dose, they
are _ considered to be a "member of the public"
1. sometimes
2. always
3. it depends
4. never - -4.never
- A person wearing a _ apron will reduce transmitted exposure to
approximately 99.9% of the incident scatter dose
1. 1.5 mm Pb equivalent
2. 0.50 mm Pb equivalent
,3. 0.25 mm Pb equivalent
4. 1.0 mm Pb equivalent - -2. 0.50 mm Pb equivalent
- If the input phosphor of an image intensifier measures 15 inches in
diameter and the output phosphor measures 1.0 inches, the minification gain
would be
1. 30
2. 225
3. 175
4. 300 - -Minification Gain = {15(2) = 225} input screen diameter (2) / {1.0
(2) = 1} output screen diameter (2) = 225/1= 225
- What electronic system is designed to help maintain a consistent level of
image brightness
1. photo-emitter
2. automatic brightness stabilizer
3. camera control unit
4. vidicon - -2. automatic brightness stabilizer
- Energy subtraction as used in digital fluoroscopy exhibits less _ than
temporal subtraction
1. complexity
2. x-ray intensity
3. kVp
4. motion artifact - -4. motion artifact
- Bone marrow dose is measured
1. directly from bone marrow
2. as estimate from gonadal dose
3. as an estimate from ESE
4. directly from the beam - -3. as an estimate from the ESE
- The Privacy Rule is meant to ensure that there is/are
1. security of electronic personal health information
2. standardization of electronic patient health data
3. limits PHI to a "need to know.." basis to carry out medical treatment
4. all the listed answers - -4. all the listed answers
- To provide illumination stability of the virtual image during fluoroscopy,
most modern units will automatically adjust radiation levels for more dense
and more radiolucent body parts. This functionality is known as:
1. velling glare
2. image flare
3. automatic adaption
4. automatic brightness control - -4. automatic brightness control
, - The electronic signal which carries image information from a television
camera to a viewing monitor is termed the:
1. video signal
2. return beam
3. synchronization pulse
4. bandpass - -1. video signal
- If only one personnel monitoring device is worn, it must be located
1. under the apron at the collar level
2. outside the apron at the gonad level
3. outside the apron at the collar level - -3. outside the apron at the collar
level
- The random pattern of incident radiation, which often results in the
appearance of "snow" or "mottle" when viewing the virtual image is called
1. flicker effect
2. lens opacity
3. quantum noise
d. vignetting - -3. quantum noise
- When wearing a "film badge" as a personnel monitoring device, it must be
positioned
1. at waist level
2. at collar level
3. under the protective apron
4. outside the protective apron - -b. 2 and 4
- Which of the following are considered to be advantages of using a film
badge for radiation monitoring
1. inexpensive
2. reusable
3. provides a permanent record
4. provides an objective review of exposure history - -c. 1 and 3
- which of the following statements is true with respect to obtaining a
medical history for a radiographic examination
1. should include any pertinent information about the patient and indicated
the reason for the examination
2. is not considered confidential information
3. required only for inpatients
4. is always obtained by the radiologist - -1. should include any pertinent
information about the patient and indicated the reason for the examination
- In a television system, the ratio between the vertical resolution and the
number of horizontal scan lines is called the
1. line rate factor
, 2. kell factor
3. conversion factor
4. resolution factor - -2. kell factor
- In an image intensification tube, to prevent light from scattering back
towards the photo cathode layer, a thin sheet of aluminum is placed onto the
:
1. output phosphor
2. accelerating anode
3. photo cathode
4. input phosphor - -output phosphor
- Digital photo spot image recording provides which of the following
advantages
1. instant image playback
2. electronic image enlargement
3. improved resolution over conventional spot film
c. 1,2 and 3
d. 1 only - -c. 1,2 and 3
- California state regulations state the target to panel or target to table
1. shall not be more than 18 inches
2. shall not be less than 12 inches
3. should not be less than 12 inches
4. should not be more than 18 inches - -2. shall not be less then 12 inches
- which protective barrier is used to attenuate stray radiation
1. secondary protective barrier
2. x-ray tube housing
3. primary protective barrier
4. useful beam barrier - -3. primary protective barrier
- During which period of time does a generator operating in the "pulse
progressive fluoroscopy" mode produce usable xray photons
1. duty cycle
2. extinction phase
3. interrogation phase - -1. duty cycle
- The squared ratio of an input screen diameter to an output screen
diameter is called:
1. minification ratio
2. conversion ratio
3. magnification ratio
4. flux gain - -1. minification ratio
Board Exam |457 Q’s and A’s
What digital fluoroscopic imaging technique utilizes changing masks, which
provides information of changes in contrast media content within a structure
1.Time interval difference imaging
2. Mask mode fluoroscopy
3. K -edge fluoroscopy
4. Synchronized fluoroscopy - -1. Time interval difference imaging
- All of the following will directly influence the table-top exposure rate
except
1. Light in the fluoroscopy room
2. kVp
3. Target to panel distance
4. Filtration - -1. Light in the fluoroscopy room
- Attenuation of a radiation beam's intensity as it passes through an
absorber is governed by
1. Time
2. The specific mediums density
3. The energy of the radiation
4. The thickness of the absorber traversed - -2. The specific mediums
density
3. The energy or radiation
4. The thickness of the absorber traversed
- What recording medium will result in the least recorded resolution
1. Spot films using a spot film camera
2. video tape recording
3. spot films using conventional cassettes
4. video disc recording - -2. video tape recording
- During the period when an individual receives an occupational dose, they
are _ considered to be a "member of the public"
1. sometimes
2. always
3. it depends
4. never - -4.never
- A person wearing a _ apron will reduce transmitted exposure to
approximately 99.9% of the incident scatter dose
1. 1.5 mm Pb equivalent
2. 0.50 mm Pb equivalent
,3. 0.25 mm Pb equivalent
4. 1.0 mm Pb equivalent - -2. 0.50 mm Pb equivalent
- If the input phosphor of an image intensifier measures 15 inches in
diameter and the output phosphor measures 1.0 inches, the minification gain
would be
1. 30
2. 225
3. 175
4. 300 - -Minification Gain = {15(2) = 225} input screen diameter (2) / {1.0
(2) = 1} output screen diameter (2) = 225/1= 225
- What electronic system is designed to help maintain a consistent level of
image brightness
1. photo-emitter
2. automatic brightness stabilizer
3. camera control unit
4. vidicon - -2. automatic brightness stabilizer
- Energy subtraction as used in digital fluoroscopy exhibits less _ than
temporal subtraction
1. complexity
2. x-ray intensity
3. kVp
4. motion artifact - -4. motion artifact
- Bone marrow dose is measured
1. directly from bone marrow
2. as estimate from gonadal dose
3. as an estimate from ESE
4. directly from the beam - -3. as an estimate from the ESE
- The Privacy Rule is meant to ensure that there is/are
1. security of electronic personal health information
2. standardization of electronic patient health data
3. limits PHI to a "need to know.." basis to carry out medical treatment
4. all the listed answers - -4. all the listed answers
- To provide illumination stability of the virtual image during fluoroscopy,
most modern units will automatically adjust radiation levels for more dense
and more radiolucent body parts. This functionality is known as:
1. velling glare
2. image flare
3. automatic adaption
4. automatic brightness control - -4. automatic brightness control
, - The electronic signal which carries image information from a television
camera to a viewing monitor is termed the:
1. video signal
2. return beam
3. synchronization pulse
4. bandpass - -1. video signal
- If only one personnel monitoring device is worn, it must be located
1. under the apron at the collar level
2. outside the apron at the gonad level
3. outside the apron at the collar level - -3. outside the apron at the collar
level
- The random pattern of incident radiation, which often results in the
appearance of "snow" or "mottle" when viewing the virtual image is called
1. flicker effect
2. lens opacity
3. quantum noise
d. vignetting - -3. quantum noise
- When wearing a "film badge" as a personnel monitoring device, it must be
positioned
1. at waist level
2. at collar level
3. under the protective apron
4. outside the protective apron - -b. 2 and 4
- Which of the following are considered to be advantages of using a film
badge for radiation monitoring
1. inexpensive
2. reusable
3. provides a permanent record
4. provides an objective review of exposure history - -c. 1 and 3
- which of the following statements is true with respect to obtaining a
medical history for a radiographic examination
1. should include any pertinent information about the patient and indicated
the reason for the examination
2. is not considered confidential information
3. required only for inpatients
4. is always obtained by the radiologist - -1. should include any pertinent
information about the patient and indicated the reason for the examination
- In a television system, the ratio between the vertical resolution and the
number of horizontal scan lines is called the
1. line rate factor
, 2. kell factor
3. conversion factor
4. resolution factor - -2. kell factor
- In an image intensification tube, to prevent light from scattering back
towards the photo cathode layer, a thin sheet of aluminum is placed onto the
:
1. output phosphor
2. accelerating anode
3. photo cathode
4. input phosphor - -output phosphor
- Digital photo spot image recording provides which of the following
advantages
1. instant image playback
2. electronic image enlargement
3. improved resolution over conventional spot film
c. 1,2 and 3
d. 1 only - -c. 1,2 and 3
- California state regulations state the target to panel or target to table
1. shall not be more than 18 inches
2. shall not be less than 12 inches
3. should not be less than 12 inches
4. should not be more than 18 inches - -2. shall not be less then 12 inches
- which protective barrier is used to attenuate stray radiation
1. secondary protective barrier
2. x-ray tube housing
3. primary protective barrier
4. useful beam barrier - -3. primary protective barrier
- During which period of time does a generator operating in the "pulse
progressive fluoroscopy" mode produce usable xray photons
1. duty cycle
2. extinction phase
3. interrogation phase - -1. duty cycle
- The squared ratio of an input screen diameter to an output screen
diameter is called:
1. minification ratio
2. conversion ratio
3. magnification ratio
4. flux gain - -1. minification ratio
