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






2. What Size film is used to take an occlusal radiograph of a 6 yr old child






3. What type of film are rare earth screens paired with






4. What control factors effect the density of a radiograph






5. What is the annual MPD for radiation workers






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






7. What Size film is used to take a BW on a 3 yr. old






8. Max. centrals anatomy






9. What is the emulsion composed of?






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






11. What does alara stand for






12. Proper patient positiong for paralleling

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13. When mounting a FMS - you notice that one film is blank. another film is dark - the teeth look strange - and it is difficult to determine What film it is. What do you think happened?






14. What is the best method of reducing radiation to the patient






15. 1/10th dosage of gen. public - What are photons






16. How do you differentiate b/w max and mand molar when mounting






17. How does exposure time for edentulous patients compare to dentulous patients






18. Max lat. canine anatomy






19. What are three types of image receptors used in digital radiography






20. What causes elongation






21. who discovered x-rays






22. What is the purpose of the lead foil?






23. What radiograph is used to sHow contrast in soft tissues






24. What NC agency is resposible for monitoring dental x-ray equipment






25. which anatomical structures appear radiolucent






26. How should x-ray film be stored






27. you notice that a radiograph taken several months ago is brown and spotted. What happened






28. What PPE should be worn when exposing radiographs






29. What is the max. permissable fose for radiation workers in systeme interventional units






30. when viewing a duplicated radiograph - you notice that the duplicate is too dark. What should you do to duplicating time to lighten the film






31. Size film used for occlusals on adults






32. What is added filtration






33. What is the x-ray at the center of the primary beam called






34. Your dentist asks you to take a FMS on a 65 yr old edentulous patient. How many exposures will you take? which exposures are not necessary? What intraoral technique will you use? What might be better than a FMS?






35. How does reducing exposure to the patient benefit the operator






36. What is the collimator made out of...






37. How do you determine How often to take radiographs






38. Size film used for PA's on small children






39. Size film used for anterior PA's for patients with narrow arches






40. when viewing a molar BW - What should be on the distal of the film






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






42. How long are films fixed






43. What can be done to prevent air bubbles from being trapped on the surface of films during manual processing






44. When interpreting radiographs - you notice a radiopaque extension or spur off the proximal surface of #30. What do you think this is?






45. What type of x-rays have greater penetrating power - long or short wavelength?






46. What must a patient remove before taking a PANO






47. What is the annual MPD for pregnant dental assistant






48. which projection is used to view sinuses






49. How far should the operator stand from the source of radiation






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







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