Test your basic knowledge |

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. when should radiographs be taken on a pregnant patient






2. What is the most likely cause of a film with very poor definition






3. What should be done prior to ordering radiographs for a patient






4. What type film is faster - intraoral or extraoral






5. in which pericapical projection will the mental ridge be visible






6. How is vertical angulation established with the bisecting technique






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






8. How long does film stay in the developer






9. an insurance company requests a patient's radiographs when examining a dental clain. you only have one copy of the radiographs. What should you do






10. What control factors effect contrast






11. What looking at manually processed films - you notice small black spots on the films. What caused those spots?






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

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13. When looking at radiographs that were taken several years ago - you notice a brownish stain which makes interpretation difficult. What caused this?






14. What info should be recorded on the dental radiographic mount

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15. What film is used to diagnose interproximal decay






16. 3 film holding devices used for bisecting






17. you use an exposure time of 10 impulses. How many seconds is this






18. What is the latent period






19. Proper patient positiong for paralleling

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20. 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?






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






22. How are indirect exposure films exposed






23. What are filters made out of...






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






25. which projection is used to view sinuses






26. when taking a radiograph - you pulls the cone out about 6 inches from the patient's face. What is the result






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






28. Size film used for PA's on adults






29. when manually processing dental film - you notice the temp. has gotten warmer as the day progressed. How should the developing time be changed?






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






31. What is penumbra






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






33. What is added filtration






34. 1/10th dosage of gen. public - What are photons






35. When mounting dental radiographs - What is the best way to differentiate max and mand films?






36. Size film used for BW on adults






37. What part of the x-ray machine is responsible for providing the electrons






38. When viewing a periapical radiograph - you notice that the image of the tooth is extremely long and well defined; However the apices are missing. What technique was used to take the radiograph? What caused the roots to appear long?






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






40. The cells from most sensitive to least sensitive






41. What factors affect the sharpness of the radiographic image






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






43. What would cause increased magnification - decreased resolution and edge sharpness






44. What would happen to a film that is placed in the fixer prior to development






45. What is the annual MPD for pregnant dental assistant






46. when taking a PANO radiograph - the patient is placed too far into the machine. How will the radiograph appear






47. How does film speed correlate with definition and detail?






48. A properly exposed film appears completely black. when was is exposed to white light






49. What is characteristic radiation






50. What is formed when high speed electrons strike the target