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. MAs for abdomen (standard mAs) x=?






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






4. If you use an mA of 300 - What time fraction must i use to get an mAs of 10?






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






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






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






8. MAs for bone views (pelvis - skull - spine) 2x =?






9. Bone infection - also known as spondylitis






10. Is the source of electrons






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






12. Extra pain is also called






13. Must be radiolucent






14. Is influenced by quantity of x-rays(mAs) - quality of x-rays (kVp) - type and thickness of tissue being x-rayed






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






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






17. Is to the right - it produces the electrons






18. Negative contrast agents appear what color on a radiograph






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






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






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






22. Legally - a non-pregnant woman is required to hold a HBC dog for radiographs in NYS






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






24. If the kVp is too high






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






26. Has a positive charge






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






28. Longer wavelengths of electromagnetic radiation have more penetrating power






29. Radiograph of a dogs skeleton has a long scale of contrast






30. MAs for extremities






31. The type of collimator that we have here






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






33. Between density and kVp






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






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






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






37. Improper centering of grid is one reason for






38. If there's bone in the way of an x-ray -. those parts would be






39. 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)






40. Incorrect grid focus is one reason for






41. Safe Operating Procedures






42. The distance from the x-ray tube to the x-ray machine is the SID (source image distance) - or the FFD (also known as....)






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






44. Must change if the FFD changes






45. To double the density






46. What must have little or no 'afterglow'






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






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






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






50. Aluminum filter