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. This is inversely proportional to screen speed






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






3. What are the 2 types of anodes






4. Extra pain is also called






5. The greater the number of electrons released






6. Screens are classified according to






7. What specific part of the eye is cloudy with a cataract






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






9. Lung tissue appears black (radiolucent) on a radiograph






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






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






12. Between density and kVp






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






14. General purpose film - forgiving






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






16. Is the device which restricts (narrows) the beam of x-rays as they leave the x-ray machine






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






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






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






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






21. Positive contrast agents appear what color on a radiograph






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






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






24. If the kVp is increased by 15% - the density is doubled






25. Calcium tungstate - rare earth elements






26. If you use an mA of 300 - What time fraction must i use to get an mAs of 10?






27. A clear protective layer on radiographic film






28. Types of cell damage






29. Lead equivalent for apron






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






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






32. Must change if the FFD changes






33. DJD is also called






34. These cells are the most sensitive to radiation






35. Dislocations or separations






36. When this is exposed to x-rays - it will absorb photons (quanta) and give off photons of visible light which the film is sensitive to (give off blue light)






37. An abdominal radiograph should be taken at the peak of expiration






38. What is the term for an unknown cause






39. Extra vertebrae - scoliosis - fused vertebrae are all examples of






40. Negative contrast agents appear what color on a radiograph






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






42. Loss of movement in legs (front and/or back)






43. What is the name for the cartilage flap in the shoulder joint that has broken free and is floating around in the joint fluid






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






45. This stage of pregnancy is the most dangerous for the fetus






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






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






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






49. Weakness






50. Monitors personal exposure to radiation