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 the kVp is increased by 15% - the density is doubled






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






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






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






5. Improper centering of grid is one reason for






6. Incorrect grid focus is one reason for






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






8. As this increases - the intensity of the x-ray beam decreases - so the beam intensity increases - and the mAs must decrease to compensate






9. Rotating anode






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






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






12. What must have little or no 'afterglow'






13. X-ray gloves have to have....of lead equivalent






14. This is caused by mutations in gonadal cells - not seen until offspring are produced - mutations are not always bad






15. The mAs has to do with the power of the x-rays produced






16. What is the term for an unknown cause






17. A living animal - with tissue densities such as fat - muscle - fluid - and air






18. A...is a series of lead strips on edge which only allow the primary x-rays - which are traveling in straight lines - reach the film






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






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






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






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






23. To double the density






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






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






26. Is the source of electrons






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






28. Is to the left - electrons bounce off it at a 20 degree angle






29. Has a negative charge






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






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






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






33. Is to the right - it produces the electrons






34. What are the 2 types of anodes






35. Must be radiolucent






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






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






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






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






40. A clear protective layer on radiographic film






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






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






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






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






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






46. NYSVMS Facility Accreditation Standards






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






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






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






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