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. Longer wavelengths of electromagnetic radiation have more penetrating power






2. This is inversely proportional to screen speed






3. Is the electrical current that heats the filament






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






5. Gelatinous center of disk - pinches spinal cord to cause herniated disk






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






7. These cells are the most sensitive to radiation






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






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






10. A clear protective layer on radiographic film






11. NYSVMS Facility Accreditation Standards






12. What is the term for an unknown cause






13. If the x-ray tube is not 36-40 inches from the grid - this is called the






14. The effective focal spot is only 1/3 the size of the actual focal spot. this is called the






15. Redness of the skin






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






17. Is located in a focusing cup made of molybdenum which has a high melting point and helps to direct the electrons produced toward the cathode






18. Screen speed is.....to the exposure required to cause it to flouresce






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






20. Must be radiolucent






21. Affects both density and contrast






22. Film with silver crystals that is more sensitive to fluorescent light emitted from intensifying screens than to ionizing radiation






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






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






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






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






27. Refers to the 'blackness' of a radiograph






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






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






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






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






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






33. Aluminum filter






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






35. MAs for chest 1/2x =?






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






37. Weakness






38. What is one of the most common areas of occurance for spinal problems ( 85% dachshunds)






39. Within the collimator outlines just how much is collimated






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






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






42. Has a positive charge






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






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






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






46. Another result of the 20 degree angling






47. Size film we use here






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






49. Grid helps reduce the amount of......






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