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. When processing film - the black areas are made of






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






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






4. This is inversely proportional to screen speed






5. The focused grid is upside down - is one reason for






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






7. We are supposed to use a grid if the abdomen is greater than or equal to......






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






9. Infection of a disk - or bone near it






10. AgBr + x-rays =






11. Extra pain is also called






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






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






14. Redness of the skin






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






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






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






18. If the thorax is greater than or equal to....you should use a grid






19. The picture formed after the film has been exposed to x-rays and then processed into a visible image.






20. Calcium tungstate - rare earth elements






21. The type of collimator that we have here






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






23. Screens are classified according to






24. What spinal problem do doberman's get






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






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






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






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






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






30. If there's far or muscle in the way of an x-ray - those parts would be






31. If there's metal in the way of an x-ray - than no x-rays will get through and that part would be






32. The 2 types of collimators are






33. Increased crystal size.....






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






35. Weakness






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






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






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






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






40. When.....collide with the anode - 99% of energy is released in the form of heat - and 1% of energy is in the form of x-rays






41. With what kind of typical film do we get 95% exposure due to visible light and 5% is due to the x-rays directly






42. Growth - gonadal - neoplastic - and metabolically active cells are what kind of cells






43. The efficiency of this reflects light made by phosphors back towards the film






44. What type of film gives more detailed radiographs but more exposure to everyone involved? (commonly used as dental film - or for extremities)






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






46. What must have little or no 'afterglow'






47. What type of films need a lot more x-ray exposure and more time to expose them






48. This is used to take 'real-time' radiographs - used a lot in horses






49. Affects both density and contrast






50. Lung tissue appears black (radiolucent) on a radiograph