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






2. What is the term for when the animal's bowel engulfs a piece of bowel distal to it - causing blockage






3. The tendency of a luminescent compound to continue to give off light after x-radiation has stopped






4. Cassettes can be made of.....Which is the type here - or they can be made of magnesium - vinyl - etc






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






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






7. Screens are classified according to






8. 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)






9. Another result of the 20 degree angling






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






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






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






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






14. The greater the number of electrons released






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






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






17. If perforation is suspected - what compound do we use when radiographing






18. Does move - has disks that rotate at high speeds - this helps spread out the heat that's produced as the electrons hit the focal spot






19. Refers to the 'blackness' of a radiograph






20. Bone infection - also known as spondylitis






21. MAs for extremities






22. General purpose film - forgiving






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






24. Negative contrast agents appear what color on a radiograph






25. If the kVp is too low






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






27. Grid helps reduce the amount of......






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






29. Calcium 'bridges' between adjacent vertebrae






30. Radiographic signs dont always agree with what






31. Within the collimator outlines just how much is collimated






32. To double the density






33. When the density difference is great - there is






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






35. The smaller the focal spot






36. The type of collimator that we have here






37. Less forgiving - high contrast - cannot tolerate changes in exposure or processing






38. Is determined by the ratio of the height of the lead strips to the distance between them






39. Weakness






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






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






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






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






44. What specific part of the eye is cloudy with a cataract






45. A grid must be used on the chest if it's 11cm thick






46. Measures the power of penetrability (quality) of the x-rays produced






47. Is to the right - it produces the electrons






48. To utilize this - you position the thickest part of the animal towards the cathode end of the x-ray tube






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






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