Test your basic knowledge |

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 term for a negative contrast cystogram where we inject air






2. Pigments tend to decrease the lateral spread of light so there is increased detail






3. When a body part is greater than or equal to.....you should use a grid






4. Increase what value to penetrate thick body parts






5. Dislocations or separations






6. The effective focal spot is only 1/3 the size of the actual focal spot. this is called the






7. A clear protective layer on radiographic film






8. MAs for bone views (pelvis - skull - spine) 2x =?






9. What is the term for an unknown cause






10. We should always try and stay How many feet from our x-ray machine






11. Loss of movement in legs (front and/or back)






12. Radiographic signs dont always agree with what






13. MAs for chest 1/2x =?






14. MAs for ANY part - when using a grid 3x= ?






15. Are produced when electrons are slowed down or stopped by atoms in the target area where they are aimed






16. What type of film has the x-rays directly cause the latent image to be formed






17. Is on the anode and is angled at approximately 20 degrees from vertical






18. Film with: ultra speed - grainier image - less exposure needed






19. When more electrons hit the focal spot on the anode






20. The 2 types of collimators are






21. MAs for extremities






22. Grid helps reduce the amount of......






23. Redness of the skin






24. What type of bone tumors started elsewhere and spread to the location it was found






25. The exact area of the anode that the electrons hit






26. Affects both density and contrast






27. A layer of intensifying screen that reflects the light from the phosphor layer toward the film






28. General purpose film - forgiving






29. This pertains to the size of the electron cloud and thus directly to the number of x-ray produced






30. What needs to have high levels of x-ray absorbtion






31. Screens are classified according to






32. Film that is more sensitive to ionizing radiation than to fluorescent light






33. When this is exposed to x-rays - it will absorb photons (quanta) and give off photons of visible light which the film is sensitive to (give off blue light)






34. To double the density






35. Improper centering of grid is one reason for






36. Film with silver crystals that is more sensitive to fluorescent light emitted from intensifying screens than to ionizing radiation






37. For bladder cystography - we use what contrast material instead of barium






38. What must have little or no 'afterglow'






39. Has a positive charge






40. The back of the cassette is made of lead to decrease....






41. Legally - a non-pregnant woman is required to hold a HBC dog for radiographs in NYS






42. Outer layer of disk ( dries out and cracks and causes disk to herniate)






43. Sheets of luminescent phosphor crystals bound together and mounted on a cardboard or plastic base






44. Calcium 'bridges' between adjacent vertebrae






45. Incorrect grid focus is one reason for






46. They don't move - they're found in dental units and portable units - cannot withstand the heat produced from large units






47. With the heel effect - more x-rays tend to be in the beam toward this end of the tube






48. Tilting of the tube or grid is one reason for






49. Safe Operating Procedures






50. These screens are high speed - they decrease exposure - poorer detail - able to penetrate thicker areas