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.