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. Crystals + x-rays = ?






2. What gives off 4 times the amount of light photons than does the calcium tungstate (it gives off green light)






3. Improper centering of grid is one reason for






4. Hairloss or baldness






5. A...is a series of lead strips on edge which only allow the primary x-rays - which are traveling in straight lines - reach the film






6. As this increases - the intensity of the x-ray beam decreases - so the beam intensity increases - and the mAs must decrease to compensate






7. Areas on film that should be black but come out grey - due to storage






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






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






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






11. What is the term for when the animal's bowel engulfs a piece of bowel distal to it - causing blockage






12. If perforation is suspected - what compound do we use when radiographing






13. Collimator






14. If there's far or muscle in the way of an x-ray - those parts would be






15. These screens are high speed - they decrease exposure - poorer detail - able to penetrate thicker areas






16. Negative contrast agents appear what color on a radiograph






17. Why do we not give atropine with a contrast radiograph






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






19. The x-ray machine we've been using has a rotating anode






20. Is located in a focusing cup made of molybdenum which has a high melting point and helps to direct the electrons produced toward the cathode






21. Positive contrast agents appear what color on a radiograph






22. Increased crystal size.....






23. When the AgBr reacts and ionizes with light or x-rays - than at this point - What is on the film is known as the






24. Longer wavelengths of electromagnetic radiation have more penetrating power






25. What is one of the most common areas of occurance for spinal problems ( 85% dachshunds)






26. Screen speed is.....to the exposure required to cause it to flouresce






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






28. Refers to the 'blackness' of a radiograph






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






30. Must be radiolucent






31. Radiograph of a dogs skeleton has a long scale of contrast






32. Less forgiving - high contrast - cannot tolerate changes in exposure or processing






33. Increase what value to penetrate thick body parts






34. The back of the cassette is made of lead to decrease....






35. Another result of the 20 degree angling






36. AgBr + light =






37. What must have little or no 'afterglow'






38. Redness of the skin






39. Within the collimator outlines just how much is collimated






40. Bone infection - also known as spondylitis






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






42. Give a 25% barium solution for upper GI series - and give At what dose?






43. What spinal problem do doberman's get






44. Is the most common artifact in radiography






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






46. The smaller the focal spot






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






48. They don't move - they're found in dental units and portable units - cannot withstand the heat produced from large units






49. The focused grid is upside down - is one reason for






50. Weakness