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. A clear protective layer on radiographic film






2. There are......intensifying screens within a cassette






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






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






5. Has a negative charge






6. General purpose film - forgiving






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






8. Increased crystal size.....






9. Most commonly used film - compromise between graininess and speed (detail)






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






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






12. X-ray machines come with a set one - we cannot adjust it






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






14. AgBr + x-rays =






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






16. What needs to have high levels of x-ray to light conversion with the correct energy and color for the type of film used






17. When the AgBr reacts and ionizes with light or x-rays - than at this point - What is on the film is known as the






18. Screens are classified according to






19. Is the electrical current that heats the filament






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






21. Body cells affected - damage seen during lifetime of creature - can be immediate or cummulative






22. The x-ray machine we've been using has a rotating anode






23. Safe Operating Procedures






24. Size film we use here






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






26. Old mAs x (new FFD)2 divided by (old FFD)2






27. On a lateral view of the chest the aorta is dorsal to the caudal vena cava






28. This stage of pregnancy is the most dangerous for the fetus






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






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






31. Longer wavelengths of electromagnetic radiation have more penetrating power






32. Types of grids






33. When processing film - the black areas are made of






34. Must change if the FFD changes






35. A device that moves the grid back and forth under the table. it helps to prevent grid lines from showing






36. What type of bone tumors started in the location they were first found






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






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






39. This is inversely proportional to screen speed






40. MAs for abdomen (standard mAs) x=?






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






42. 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)






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






44. If there's no object in the way of an x-ray - the picture would be






45. Increase mAs and kVp in order to...






46. Can cause damage to living cells through the process of excitation or ionization of electrons in the orbits around atoms






47. These screens are the most common type - they give good resolution with relatively low exposure






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






49. White against black - like the x-ray of a plain skeleton






50. Must increase.....to compensate for x-ray absorption by the grid. (we triple our mAs)