Imaging VTNE Exam Questions and Answers

Imaging VTNE Exam Questions and Answers All hard copies of radiographs, computed tomography (CT) scans, ultrasound images, and magnetic resonance imaging (MRI) studies are: - Answer ️️ -the hospital's property and part of the patient's record For a radiograph to be considered admissible as evidence in a court of law, at least the _____ must be permanently imprinted onto it prior to developing. - Answer ️️ -Patient name or identification number, owner name, hospital name, and date of the examination The term radiographic technique generally refers to: - Answer ️️ -The machine's exposure settings (e.g., kVP, mAs) during a given examination X-rays cannot penetrate: - Answer ️️ -Lead Concerning the filaments in the x-ray tube that produce electrons, which statement is most accurate? - Answer ️️ -The small filament may melt more rapidly than the large filament if an excess load is placed on it. Why are rotating-anode x-ray machines more powerful than stationary-cathode x-ray machines? - Answer ️️ -- 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: - Answer ️️ -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. - Answer ️️ -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? - Answer ️️ -Reduce the time to 1/20 second and increase the mA to 200. 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? - Answer ️️ -Decrease the kVP. Which statement is most accurate concerning the effects of a change in focus-film distance (FFD) when taking radiographs? - Answer ️️ -The mAs setting must be changed according to a standard mathematical formula. How does one obtain the correct machine settings when taking a radiograph? - Answer ️️ - 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? - Answer ️️ -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. Care of image-intensifying screens involves: - Answer ️️ -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: - Answer ️️ -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: - Answer ️️ -Improper processing techniqu