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. Is only 1/3 the size of the actual focal spot






2. If the kVp is too high






3. Is to the left - electrons bounce off it at a 20 degree angle






4. Ideally is very small






5. Bone - lymphatic cells - epitheilial - and hemopoietic cells are also what kind of cell?






6. Increase what value to penetrate thick body parts






7. Calcium tungstate - rare earth elements






8. Bone infection - also known as spondylitis






9. Improper centering of grid is one reason for






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






11. If the thorax is greater than or equal to....you should use a grid






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






13. Film with: high detail - minimal graininess - increased exposure






14. General purpose film - forgiving






15. What spinal problem do doberman's get






16. White against black - like the x-ray of a plain skeleton






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






18. What type of film has no screens or film cassettes






19. The layer of the film where the action occurs






20. X-ray gloves have to have....of lead equivalent






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






22. Types of cell damage






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






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






25. What is the difference between fluoroscopy and a regular radiograph






26. Film with silver crystals that is more sensitive to fluorescent light emitted from intensifying screens than to ionizing radiation






27. Between density and mAs






28. On a lateral view of the chest the aorta is dorsal to the caudal vena cava






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






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






31. Aluminum filter






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






33. Increased crystal size.....






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






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






36. Must be radiolucent






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






38. If there's metal in the way of an x-ray - than no x-rays will get through and that part would be






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






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






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






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






43. Sheets of luminescent phorphor crystals on a cardboard or plastic base






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






45. With the heel effect - more x-rays tend to be in the beam toward this end of the tube






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






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






48. The greater the number of electrons released






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






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