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. which projection is used to view sinuses






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






3. How is vertical angulation established with the paralleling technique






4. What Size film is 2 1/4 x 3






5. What is the purpose of the lead foil?






6. you change from an 8 inch to an 16 inch focal film distance. How is the intensity of the beam affected






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






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






9. How long does film stay in the developer






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






11. when viewing a radiograph - the tooth looks normal in size and shape; However - there is a large blank space at the incisal edge and the apices are missing. What caused this error






12. after processing exposed dental film - you notice dark spots on the film. What caused this






13. What periapical technique offers the best diagnostic quality?






14. How often should an FMS be taken on an adult with no significant medical history






15. What Size film is 15/16 x 1 9/16






16. when duplicating radiographs - What side of the duplicating film is in contact with the radiograph to be duplicated






17. What type of safelight filter is acceptable






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






19. What must a patient remove before taking a PANO






20. What type of projection is used to visualize the crestol alveolar bone on a patient with moderate to severe bone loss






21. How does exposure time differ b/w adults and children






22. What happens in the fixer






23. What is the purpose of a pano






24. Mand premolar anatomy






25. What 3 types of cells are most radiosensitive






26. Max. centrals anatomy






27. What is the purpose of taking radiographs of an edentulous patient






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






29. when should radiographs be taken on a pregnant patient






30. What speed films are most commonly used?






31. What is the major use of cross sectional occlusal radiograph






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






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






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






35. How is vertical angulation established with the bisecting technique






36. What causes conecut






37. 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?






38. How should the frequency of radiographic exposures be determined






39. According to principles of shadow casting - How should the central beam be directed






40. What is the source-skin distance of x-ray machine that operates at 75 kVp






41. How often are BW taken on children with high risk






42. What is used to clean the screens inside of a cassestte






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






44. Max molar anatomy






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






46. What anatomical structures appear radiolucent on a dental radiograph






47. What is inherent filtration






48. What is the optimum processing temp.






49. How are indirect exposure films exposed






50. What parts of the x-ray machine are included in the cathode circuit