Test your basic knowledge |

Instructions:
  • Answer 50 questions in 15 minutes.
  • If you are not ready to take this test, you can study here.
  • Match each statement with the correct term.
  • Don't refresh. All questions and answers are randomly picked and ordered every time you load a test.

This is a study tool. The 3 wrong answers for each question are randomly chosen from answers to other questions. So, you might find at times the answers obvious, but you will see it re-enforces your understanding as you take the test each time.
1. An abdominal radiograph should be taken at the peak of expiration






2. A layer of intensifying screen that reflects the light from the phosphor layer toward the film






3. Means more electrons will be released from the filament and directed at the anode






4. In the dark room - the safe light (red light) needs to be at least how far away from the loading bench






5. A grid must be used on the chest if it's 11cm thick






6. What is one of the most common area of occurance for spinal problems (15% dobermans)






7. In which processing solution do unionized (green) AgBr crystals get removed from the film






8. NYSVMS Facility Accreditation Standards






9. Is determined by the ratio of the height of the lead strips to the distance between them






10. Calcium 'bridges' between adjacent vertebrae






11. Is responsible for the number or quantity of x-rays






12. The effective focal spot is approximately 1/3 the size of the actual focal spot






13. Gelatinous center of disk - pinches spinal cord to cause herniated disk






14. What needs to have high levels of x-ray absorbtion






15. MAs for extremities






16. Growth - gonadal - neoplastic - and metabolically active cells are what kind of cells






17. Pigments tend to decrease the lateral spread of light so there is increased detail






18. X-ray machines come with a set one - we cannot adjust it






19. Within the collimator outlines just how much is collimated






20. Outer layer of disk ( dries out and cracks and causes disk to herniate)






21. Has a filament made of tungsten - due to the high melting point






22. What type of film gives more detailed radiographs but more exposure to everyone involved? (commonly used as dental film - or for extremities)






23. Slowly growing dividing cells are the most sensitive to the effects of ionizing radiaton






24. To double the density






25. The type of collimator that we have here






26. We are supposed to use a grid if the abdomen is greater than or equal to......






27. Is the electrical current that heats the filament






28. To utilize this - you position the thickest part of the animal towards the cathode end of the x-ray tube






29. Must increase.....to compensate for x-ray absorption by the grid. (we triple our mAs)






30. Has a positive charge






31. What are the 2 types of anodes






32. The shorter the wavelength of the x-ray - the more powerful the x-ray is






33. Film with: ultra speed - grainier image - less exposure needed






34. Old mAs x (new FFD)2 divided by (old FFD)2






35. The distance from the x-ray tube to the x-ray machine is the SID (source image distance) - or the FFD (also known as....)






36. Legally - a non-pregnant woman is required to hold a HBC dog for radiographs in NYS






37. Incorrect grid focus is one reason for






38. With what kind of typical film do we get 95% exposure due to visible light and 5% is due to the x-rays directly






39. Distance from the grid to the x-ray tube (36-40 inches)






40. What is the term for the spotty appearance on the film due to the large crystals in the screens






41. Another result of the 20 degree angling






42. Aluminum filter






43. This is caused by mutations in gonadal cells - not seen until offspring are produced - mutations are not always bad






44. These screens are the most common type - they give good resolution with relatively low exposure






45. A device that moves the grid back and forth under the table. it helps to prevent grid lines from showing






46. Is the density difference between 2 adjacent areas on a radiograph






47. Increased thickness of this leads to increased x-ray absorption and increased visible light emission from the crystals






48. If barium leaks into the abdomen or lungs - it can cause what






49. Most commonly used film - compromise between graininess and speed (detail)






50. These crystals will turn white/clear when processing film