Imaging VTNE Exam Questions And
Answers
Why are rotating-anode x-ray machines more powerful than stationary-cathode x-ray machines?
- The former allow greater dissipation of heat.
- The former allow the use of a smaller focal spot with higher tube currents.
- The former allow the use of sho...
Why are rotating-anode x-ray machines more powerful than stationary-cathode x-ray machines?
- The former allow greater dissipation of heat.
- The former allow the use of a smaller focal spot with higher tube currents.
- The former allow the use of shorter exposure times.
(all answers are correct)
The primary source of radiation exposure to the technician during radiography is scattered
radiation, which can best be defined as: Lower-energy x-ray photons that have undergone
a change in direction after interacting with structures in the patient's body
The acronym kVP stands for _____ and controls the _____ of x-ray photons produced.
Kilovolt peak; speed
You have just taken a thoracic radiograph at 50 kVP and 100 mA at 1/10 second. The pet's
breathing caused his chest to move during the exposure, resulting in a blurry image. On the
retake, how can you correct for this motion to create a clear image of the same density?
Reduce the time to 1/20 second and increase the mA to 200.
, Imaging VTNE Exam Questions And
Answers
You have radiographed a fractured femur in a large dog. The resulting image is too gray; that is,
you can see many shades of gray and a lot of detail in the muscle layers, but the bone is also too
gray, and bony fragments are difficult to see. How can you best correct your settings to create a
clearer image of the fractured bone? Decrease the kVP.
Which statement is most accurate concerning the effects of a change in focus-film distance
(FFD) when taking radiographs? The mAs setting must be changed according to a
standard mathematical formula.
How does one obtain the correct machine settings when taking a radiograph? Settings are
obtained from a "technique chart" created, by trial and error, specifically for the machine one is
using.
Concerning the use of film holders (cassettes) in veterinary radiography, which statement is most
accurate? A "nonscreen" cassette is made of nonrigid cardboard or plastic and The most
commonly used cassettes in companion-animal practice are rigid and contain an image-
intensifying screen.
, Imaging VTNE Exam Questions And
Answers
Care of image-intensifying screens involves: Cleaning them with a special solution or
70% isopropyl alcohol at least once monthly or whenever screen artifacts are seen on a
radiograph
The purpose of a grid is to: Allow only the primary x-ray beam to pass through and
prevent scattered radiation from reaching the film and Increase the resolution of thicker body
parts.
Most mistakes made in veterinary radiography are related to: Improper processing
techniques
Which statement concerning hand processing versus automatic-film processing of radiographs is
most accurate? Both techniques require the use of fresh solutions and a well-ventilated
darkroom.
X-ray film recycling and special units attached to fixer tanks allow the recovery of _____, a
valuable and reusable substance. Silver
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