FLUOROSCOPY PRACTICE
EXAMINATION 2026 QUESTIONS
WITH ANSWERS GRADED A+
◍ What is fluoroscopy?.
Answer: A technique that shows real-time movement of internal structures
using dynamic imaging.
◍ Who invented the fluoroscope?.
Answer: Thomas Edison in 1896.
◍ What is the primary function of fluoroscopy?.
Answer: To provide real-time dynamic viewing of anatomic structures.
◍ Who invented fluoroscopy and in what year?.
Answer: Thomas Edison in 1896.
◍ What type of studies is fluoroscopy used for?.
Answer: Dynamic studies of moving internal structures and fluids.
◍ What are the limitations of open fluoroscopy?.
Answer: Required total darkness, produced dim images, increased exposure
with no shielding, and lacked image storage.
◍ What is the purpose of red adaptation goggles?.
Answer: To prepare the eyes for dark conditions without ruining night
vision.
◍ What is Automatic Brightness Control (ABC) in fluoroscopy?.
Answer: A feature that allows the radiologist to select an image brightness
level that is maintained automatically.
◍ What is the function of the image intensifier tube?.
Answer: To receive the x-ray beam and transform it into a high-intensity
, visible light image.
◍ What is the typical patient dose during image-intensified fluoroscopy?.
Answer: Considerably higher than conventional radiography.
◍ What does the kVp setting depend on in fluoroscopy?.
Answer: It depends entirely on the section of the body being examined.
◍ What is the significance of image brightness in fluoroscopy?.
Answer: Maximum image detail is desired, requiring high levels of image
brightness.
◍ What are the two types of vision associated with visual physiology?.
Answer: Photopic vision (daylight vision) and scotopic vision (night vision).
◍ What is the role of the input phosphor in image intensification?.
Answer: It receives radiation exiting the patient and emits light photons.
◍ What are the main components of a conventional fluoroscopic system?.
Answer: X-ray tube and generator, image intensifier, and video monitoring
system.
◍ What is photoemission in the context of fluoroscopy?.
Answer: The process where the photocathode changes light from the input
phosphor to electrons.
◍ What is the input phosphor made of in tube-type image intensifiers?.
Answer: Cesium iodide (CsI).
◍ What is the role of the photocathode?.
Answer: To emit electrons when struck by light emitted by the input screen.
◍ What is photoemission?.
Answer: The emission of electrons from the photocathode in response to
light stimulation.
◍ How do electrostatic focusing lenses work?.
Answer: They maintain the kinetic energy and focus of photoelectrons
towards the output phosphor.
EXAMINATION 2026 QUESTIONS
WITH ANSWERS GRADED A+
◍ What is fluoroscopy?.
Answer: A technique that shows real-time movement of internal structures
using dynamic imaging.
◍ Who invented the fluoroscope?.
Answer: Thomas Edison in 1896.
◍ What is the primary function of fluoroscopy?.
Answer: To provide real-time dynamic viewing of anatomic structures.
◍ Who invented fluoroscopy and in what year?.
Answer: Thomas Edison in 1896.
◍ What type of studies is fluoroscopy used for?.
Answer: Dynamic studies of moving internal structures and fluids.
◍ What are the limitations of open fluoroscopy?.
Answer: Required total darkness, produced dim images, increased exposure
with no shielding, and lacked image storage.
◍ What is the purpose of red adaptation goggles?.
Answer: To prepare the eyes for dark conditions without ruining night
vision.
◍ What is Automatic Brightness Control (ABC) in fluoroscopy?.
Answer: A feature that allows the radiologist to select an image brightness
level that is maintained automatically.
◍ What is the function of the image intensifier tube?.
Answer: To receive the x-ray beam and transform it into a high-intensity
, visible light image.
◍ What is the typical patient dose during image-intensified fluoroscopy?.
Answer: Considerably higher than conventional radiography.
◍ What does the kVp setting depend on in fluoroscopy?.
Answer: It depends entirely on the section of the body being examined.
◍ What is the significance of image brightness in fluoroscopy?.
Answer: Maximum image detail is desired, requiring high levels of image
brightness.
◍ What are the two types of vision associated with visual physiology?.
Answer: Photopic vision (daylight vision) and scotopic vision (night vision).
◍ What is the role of the input phosphor in image intensification?.
Answer: It receives radiation exiting the patient and emits light photons.
◍ What are the main components of a conventional fluoroscopic system?.
Answer: X-ray tube and generator, image intensifier, and video monitoring
system.
◍ What is photoemission in the context of fluoroscopy?.
Answer: The process where the photocathode changes light from the input
phosphor to electrons.
◍ What is the input phosphor made of in tube-type image intensifiers?.
Answer: Cesium iodide (CsI).
◍ What is the role of the photocathode?.
Answer: To emit electrons when struck by light emitted by the input screen.
◍ What is photoemission?.
Answer: The emission of electrons from the photocathode in response to
light stimulation.
◍ How do electrostatic focusing lenses work?.
Answer: They maintain the kinetic energy and focus of photoelectrons
towards the output phosphor.
