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. What is the purpose of the embossed dot

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2. which anatomical structures appear radiopaque






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






4. What speed films are most commonly used?






5. On a mandibular molar PA - Where is the mylohoid ridge located






6. Film submerged totally in fixer but not in developer






7. 3 film holding devices used for bisecting






8. What is secondary radiation






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






10. How does kVp affect patient exposure






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






12. Max molar anatomy






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






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






15. Max lat. canine anatomy






16. What causes clear film






17. What does alara stand for






18. What is the latent image






19. What 3 types of cells are most radiosensitive






20. What projection would you take for a patient complaining of pain in the lower left molar area






21. What looking at a PANO What causes a big smile






22. if the source-object distance is cut from 16 to 8 - What must be changed to compensate






23. How often should developing solutions be changed






24. What type lead apron should be used when taking PANO radiographs






25. What type of safelight filter is acceptable






26. How many impulses are in .25 seconds






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






28. How long does film stay in the developer






29. What are the short term effects of radiation exposure






30. How long does the first rinse last






31. you notice that the xrays you process are becoming successively lighter than the quality control film you compare it to. What should you do






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






33. What is the purpose of collimation






34. you process four BW films. three of the films appear normal - but one is clear. What happened

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35. What are filters made out of...






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






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






38. What is reticulation






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






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






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






42. What is the most commonly used personnel monitoring devide for dental offices






43. What causes elongation






44. What is the purpose of replenishing the developer solution






45. 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?






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






47. What Size film is 7/8 x 1 3/8






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






49. What would cause the radiographic image to be blurred






50. desired thickness of lead apron