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California Fluoroscopy State Board Exam: Questions and Answers, Exams of Radiology

Harvard UniversityRadiology

A compilation of questions and answers related to the california fluoroscopy state board exam. It covers various topics relevant to fluoroscopy, including digital imaging techniques, radiation safety, image intensification, and regulatory compliance. The questions are designed to test the knowledge and understanding of individuals preparing for the exam, making it a valuable resource for study and review. It includes key concepts and principles in fluoroscopic imaging and radiation protection.

Typology: Exams

2025/2026

Available from 10/16/2025

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CALIFORNIA FLUOROSCOPY STATE BOARD EXAM QUESTIONS
AND ANSWERS
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 - ANSWER->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 - ANSWER->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 - ANSWER->2.
The specific mediums density
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CALIFORNIA FLUOROSCOPY STATE BOARD EXAM QUESTIONS AND ANSWERS 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

  1. Mask mode fluoroscopy
  2. K - edge fluoroscopy
  3. Synchronized fluoroscopy - ANSWER->1. Time interval difference imaging All of the following will directly influence the table-top exposure rate except
  4. Light in the fluoroscopy room
  5. kVp
  6. Target to panel distance
  7. Filtration - ANSWER->1. Light in the fluoroscopy room Attenuation of a radiation beam's intensity as it passes through an absorber is governed by
  8. Time
  9. The specific mediums density
  10. The energy of the radiation
  11. The thickness of the absorber traversed - ANSWER->2. The specific mediums density
  1. The energy or radiation
  2. The thickness of the absorber traversed What recording medium will result in the least recorded resolution
  3. Spot films using a spot film camera
  4. video tape recording
  5. spot films using conventional cassettes
  6. video disc recording - ANSWER->2. video tape recording During the period when an individual receives an occupational dose, they are _ considered to be a "member of the public"
  7. sometimes
  8. always
  9. it depends
  10. never - ANSWER->4.never A person wearing a _ apron will reduce transmitted exposure to approximately 99.9% of the incident scatter dose
  11. 1.5 mm Pb equivalent
  12. 0.50 mm Pb equivalent
  13. 0.25 mm Pb equivalent

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 - ANSWER->3. as an estimate from the ESE The Privacy Rule is meant to ensure that there is/are
  5. security of electronic personal health information
  6. standardization of electronic patient health data
  7. limits PHI to a "need to know.." basis to carry out medical treatment
  8. all the listed answers - ANSWER->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:
  9. velling glare
  10. image flare
  11. automatic adaption
  12. automatic brightness control - ANSWER->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 - ANSWER->1. video signal If only one personnel monitoring device is worn, it must be located
  5. under the apron at the collar level
  6. outside the apron at the gonad level
  7. outside the apron at the collar level - ANSWER->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
  8. flicker effect
  9. lens opacity
  10. quantum noise d. vignetting - ANSWER->3. quantum noise When wearing a "film badge" as a personnel monitoring device, it must be positioned
  11. at waist level
  1. line rate factor
  2. kell factor
  3. conversion factor
  4. resolution factor - ANSWER->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 :
  5. output phosphor
  6. accelerating anode
  7. photo cathode
  8. input phosphor - ANSWER->output phosphor Digital photo spot image recording provides which of the following advantages
  9. instant image playback
  10. electronic image enlargement
  11. improved resolution over conventional spot film c. 1,2 and 3 d. 1 only - ANSWER->c. 1,2 and 3 California state regulations state the target to panel or target to table
  12. shall not be more than 18 inches
  13. shall not be less than 12 inches
  14. should not be less than 12 inches
  1. should not be more than 18 inches - ANSWER->2. shall not be less then 12 inches which protective barrier is used to attenuate stray radiation
  2. secondary protective barrier
  3. x-ray tube housing
  4. primary protective barrier
  5. useful beam barrier - ANSWER->3. primary protective barrier During which period of time does a generator operating in the "pulse progressive fluoroscopy" mode produce usable xray photons
  6. duty cycle
  7. extinction phase
  8. interrogation phase - ANSWER->1. duty cycle The squared ratio of an input screen diameter to an output screen diameter is called:
  9. minification ratio
  10. conversion ratio
  11. magnification ratio
  12. flux gain - ANSWER->1. minification ratio

Mobile image intensified fluoroscopy used for diagnostic purposes must not exceed _ as measured at 30 cm from the input surface of the fluoroscopic assembly

  1. 10 R/min ( 44 m/Gy per min.)
  2. 1 R/min (mGy per min.)
  3. 3 R/min (0.5m/Gy per min.)
  4. 5 R/min (44 m/Gy per min.) - ANSWER->5 R/min ( m/Gy per min.) Which of the following contributes to the "total" filtration of the useful x-ray beam
  5. added filtration
  6. inherent filtration
  7. xray tube, table, and grid d. 2 only - ANSWER->c. 1,2 and 3 When performing a fluoroscopic procedure, the primary source of scattered radiation is emitted from the:
  8. patient
  9. table top
  10. leakage radiation
  11. xray source - ANSWER->1. patient The time it takes a fully energized x-ray tube to return to a non- energized state is termed the _time
  1. interrogation
  2. extinction
  3. radiographic
  4. acquisition - ANSWER->2. extinction A fluoroscopy system using a dynamic flat panel image receptor as compared to conventional fluoroscopy requires
  5. higher tube potential
  6. higher x-ray tube current
  7. lower x-ray tube current
  8. higher capacity x-ray tubes - ANSWER->2. higher x-ray tube current Which of the following is considered to be the "primary" radiation beam?
  9. scatter radiation
  10. leakage radiation
  11. useful beam d. all of the above - ANSWER->3. useful beam What happens in the image intensification tube when magnification mode is activated?
  12. the electron stream is further compressed
  13. available input surface area being utilized is reduced
  14. the electrostatic lens voltage is increased
  1. photo detector
  2. ionization event
  3. photon attractor - ANSWER->3. ionization event the rendered pixel size will have a direct effect on _ when viewing the virtual image on a LCD monitor
  4. image brightness
  5. image size
  6. image contrast
  7. image resolution - ANSWER->1. image resolution The concept of ALARA stresses that all radiation doses are to to be kept as far below legal limits as possible for which of the following persons
  8. public
  9. patient
  10. x-ray operator - ANSWER->2. patient
  11. x-ray operator Which of the following statements is true regarding energizing the fluorosopic x-ray tube
  12. x-ray tube and image intensifier must be interlocked in order for the fluoroscopic tube to be energized 2.moble fluoroscopic x-ray tube can be energized without a spacer in place
  1. may be energized by removing the interlocking mechanism
  2. can be energized when fully in the parked position - ANSWER->1. x-ray tube and image intensifier must be interlocked in order for the fluoroscopic tube to be energized The component in an image intensifier tube that determines the amount of magnification in the virtual image is the
  3. focusing cup
  4. magnifying lens
  5. electrostatic lens
  6. accelerating anode - ANSWER->1. electrostatic lens within HIPAA regulations, computerized medical records
  7. pose problems of confidentiality
  8. make a record maintenance and retrieval more efficient
  9. should be accessed on a need-to-know basis
  10. all of the above - ANSWER->3. should be accessed on a need-to-know basis California regulations require that gonadal shielding may not be less than:
  11. 0.5 mm Pb
  1. all of the above - ANSWER->1. all of the above The type of television camera that will store a charge when light photons strike a photosensitive surface, then subsequently transfer this charge, which ultimately will be converted into a video signal is
  2. image-orthicon camera
  3. charge coupled device (CCD)
  4. vidicon camera
  5. plumbicon camera - ANSWER->2. charge coupled device (CCD) The ability to resolve the image dots on each scan line defines:
  6. horizontal resolution
  7. bandpass
  8. bandwidth
  9. vertical resolution - ANSWER->1. horizontal resolution The design of the cumulative manual - reset timer serves to protect the patient by making sure the:
  10. patient is made aware of x-ray beam "on" time
  11. x-ray beam will permanently shut off until reset
  12. fluoroscopist is aware of x-ray beam "on" time
  1. patient radiation exposures do not exceed five minutes - ANSWER->3. fluoroscopist is aware of x-ray beam "on" time The reasonable effort that a health care provider uses to limit disclosure of patient information is referred to as:
  2. privacy rule
  3. confidentiality
  4. minimum necessary standard
  5. all of the above - ANSWER->4. all of the above Maximum differential absorption by the tissues can be obtained by selecting the correct _ in order to produce a high - quality fluoroscopic image
  6. milliamperage
  7. peak kilovolts
  8. distance
  9. time - ANSWER->2. peak kilovolts The personnel radiation monitoring device that has an accuracy of about plus/minus 25% is?
  10. film badge
  11. TLD
  12. Audible warning device
  13. pocket dosimeter - ANSWER->1. film badge
  1. 70 - 110 kvp
  2. 70 - 120 kvp - ANSWER->1. 80 - 120 kvp The main advantages of a dynamic flat panel image detector as compared to image intensified digital fluoroscopy are:
  3. rectangular image display
  4. decreased quantum detective efficiency
  5. increased low contrast resolution
  6. decreased signal to noise ratio - ANSWER->2. decreased quantum detective efficiency
  7. increased low contrast reolution Spot films taken with conventional cassettes:
  8. utilize 100 or more mA
  9. Have a better spatial resolution than photospot film
  10. Have less quantum mottle than photospot film
  11. Are positioned between the patient and the image intensifier
  12. all of the above - ANSWER->5. all of the above When the optional high-level (boost) control is activated, the maximum tabletop dose rate is limited to _ when aquiring images without recording devices such as 105 photospot camera:
  13. 20 R/min
  1. 10 R/min
  2. 2.2. R/min
  3. 5 R/min - ANSWER->1. 20 R/min Fluoroscopy units have the ability to utilize a maximum of _ kVp?
  4. 110 kvp
  5. 125 kvp
  6. 150 kvp
  7. 100 kvp - ANSWER->3. 150 kvp In a dynamic flat panel detector fluoroscopy system, the detector will replace which of the following components as compared to a conventional fluoroscopy system?
  8. TV camera
  9. TV monitor
  10. Image intensifier
  11. Spot-film - ANSWER->1. TV camera
  12. Image Intensifier
  13. Spot-film camera In which of the following bones is marrow exposed when the operator is wearing a leaded apron and is facing the patient?
  14. Skull
  15. Arms