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. What type of film has no screens or film cassettes






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






3. When the density difference is great - there is






4. Affects both density and contrast






5. We should always try and stay How many feet from our x-ray machine






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






7. Size film we use here






8. The effective focal spot is only 1/3 the size of the actual focal spot. this is called the






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






10. MAs for extremities






11. What type of cystogram uses air and hypaque






12. When a body part is greater than or equal to.....you should use a grid






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






14. The mAs has to do with the power of the x-rays produced






15. For bladder cystography - we use what contrast material instead of barium






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






17. DJD is also called






18. What needs to have high levels of x-ray to light conversion with the correct energy and color for the type of film used






19. Calcium tungstate - rare earth elements






20. If the kVp is too low






21. Dislocations or separations






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






23. Within the collimator outlines just how much is collimated






24. Crystals + x-rays = ?






25. A lightproof encasement designed to hold x-ray film and intensifying screens in close contact






26. Sheets of luminescent phosphor crystals bound together and mounted on a cardboard or plastic base






27. Is the electrical current that heats the filament






28. Infection of a disk - or bone near it






29. Bone infection - also known as spondylitis






30. Improper centering of grid is one reason for






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






32. The efficiency of this reflects light made by phosphors back towards the film






33. Calcium 'bridges' between adjacent vertebrae






34. The tendency of a luminescent compound to continue to give off light after x-radiation has stopped






35. Is the source of electrons






36. If there's bone in the way of an x-ray -. those parts would be






37. If there's no object in the way of an x-ray - the picture would be






38. Another result of the 20 degree angling






39. Monitors personal exposure to radiation






40. The smaller the focal spot






41. When doing a lateral radiograph of the thorax/chest - the x-ray beam should be centered over what specific anatomical landmark






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






43. What type of film has the x-rays directly cause the latent image to be formed






44. What are the 2 types of anodes






45. With the heel effect - more x-rays tend to be produced toward the cathode end






46. What spinal problem do doberman's get






47. What is the term for an unknown cause






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






49. The picture formed after the film has been exposed to x-rays and then processed into a visible image.






50. What type of bone tumors started in the location they were first found