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Radiology 2

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 causes clear film






2. What is the best method of protecting the thyroid gland from radiation?






3. What causes teeth to appear very short and distorted






4. A patient complains of pain in the upper molar region. What radiographic exposure should be made?






5. What type PID significantly reduces exposure to the patient






6. Explain PSP






7. desired thickness of lead apron






8. How does exposure time for children compare to that of an adult






9. What is the latent image






10. your dentist recommends that a patient have xrays taken - bu the patient refuses. What should be done

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11. What does alara stand for






12. How many impulses are in .25 seconds






13. What controls the speed with which the electrons travel from the cathode to the anode






14. How are x-rays formed in the tubehead






15. What type of angulation is used when taking radiographs of the mand. arch






16. How should the frequency of radiographic exposures be determined






17. using a 16 inch cone focal-film distance - the diameter of the beam measured at the patient's face should be no larger than






18. Mand central anatomy






19. Proper patient positiong for paralleling

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20. How can you differentiate the zygoma from the max sinus in a max posterior PA






21. total filtration required of x-ray machines that operate above 70 kVp






22. What radiographs are used to determine if a foreign object is located facially or lingually






23. According to principles of shadow casting - preferred source-object distance






24. What control factors effect the density of a radiograph






25. What is the purpose of filtration






26. How should x-ray film be stored






27. What can be done to minimize gagging when taking radiographs






28. When can the films be exposed to white light






29. What is the latent period






30. What is small doses of radiation given over a long period of time






31. What would cause a film to be too light






32. What 2 unites are used to measure biologic effect and dose equivalent






33. What is the annual MPD for pregnant dental assistant






34. What is the bremsstrahlung radiation






35. What is the base of dental film composed of?






36. When using D speed film - you use 50 impulses of radiation. How many impulses would you use with E speed film?






37. which anatomic feature is visible on a PANO - bu not on a PA






38. How often should developing solutions be changed






39. Size film used for occlusals on adults






40. How often must you replenish the solutions in an automatic processor






41. What would cause a properly exposed film to appear dark?






42. How long does film stay in the developer






43. What is inherent filtration






44. What is the term to describe the overall blackness of a radiograph






45. What film is used to diagnose interproximal decay






46. You notice on a PANO that the ant. teeth appear narrow and out of focus. What caused this






47. What is added filtration






48. According to the principles of shadow casting - preferred object-film distance






49. Size film used for PA's on adults






50. How does kVp affect patient exposure







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