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. If barium leaks into the abdomen or lungs - it can cause what






2. When doing a lateral radiograph of the thorax/chest - the x-ray beam should be centered over what specific anatomical landmark






3. Compound of silver and bromine - chlorine - or iodine - all of which are in the halogen group of elements






4. Sheets of luminescent phorphor crystals on a cardboard or plastic base






5. If the grid is stationary - more lines that are finer are less apt to show up on a radiograph - this is called....






6. The shorter the wavelength of the x-ray - the more powerful the x-ray is






7. Positive contrast agents appear what color on a radiograph






8. What type of film has no screens or film cassettes






9. The effective focal spot is approximately 1/3 the size of the actual focal spot






10. Has a filament made of tungsten - due to the high melting point






11. Areas on film that should be black but come out grey - due to storage






12. What are the 2 types of anodes






13. What gives off 4 times the amount of light photons than does the calcium tungstate (it gives off green light)






14. Is responsible for the number or quantity of x-rays






15. Distance from the grid to the x-ray tube (36-40 inches)






16. These crystals will turn white/clear when processing film






17. What type of cystogram uses air and hypaque






18. Means more electrons will be released from the filament and directed at the anode






19. What is the term for the spotty appearance on the film due to the large crystals in the screens






20. Is the measurement for the maximum energy available at that setting






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






22. Bone - lymphatic cells - epitheilial - and hemopoietic cells are also what kind of cell?






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






24. If the kVp is too high






25. If the kVp is too low






26. 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)






27. AgBr + light =






28. Calcium 'bridges' between adjacent vertebrae






29. These screens have increased definition/detail - need to have increased radiation exposure






30. Grid helps reduce the amount of......






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






32. In which processing solution do unionized (green) AgBr crystals get removed from the film






33. Lead equivalent for thyroid sheild






34. Is the most common artifact in radiography






35. Animal has broken femur - it's ideal to have How many radiographs for diagnostic purposes






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






37. Is the electrical current that heats the filament






38. Ideally is very small






39. Gelatinous center of disk - pinches spinal cord to cause herniated disk






40. These cells are the most sensitive to radiation






41. Extra vertebrae - scoliosis - fused vertebrae are all examples of






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






43. Extra pain is also called






44. Aluminum filter






45. The layer of the film where the action occurs






46. What is the difference between fluoroscopy and a regular radiograph






47. Is only 1/3 the size of the actual focal spot






48. Size film we use here






49. This gives you the desired mAs - and it gives less time for your patient to move






50. With the heel effect - more x-rays tend to be produced toward the cathode end