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






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






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






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






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






6. Safe Operating Procedures






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






8. If the kVp is too low






9. Screens are classified according to






10. If the kVp is increased by 15% - the density is doubled






11. Increased crystal size.....






12. AgBr + x-rays =






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






14. Is the source of electrons






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






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






17. 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)






18. The greater the number of electrons released






19. Size film we use here






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






21. Between density and kVp






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






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






24. Refers to the 'blackness' of a radiograph






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






26. Has a positive charge






27. Is the electrical current that heats the filament






28. Redness of the skin






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






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






31. What is the name for the cartilage flap in the shoulder joint that has broken free and is floating around in the joint fluid






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






33. Why do we not give atropine with a contrast radiograph






34. Lead equivalent for apron






35. What must have little or no 'afterglow'






36. This is inversely proportional to screen speed






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






38. NYSVMS Facility Accreditation Standards






39. Infection of a disk - or bone near it






40. 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






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






42. Has a negative charge






43. With this procedure - no x-ray film is involved at all






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






45. The electrical current sent through the filament to cause this electron release is called






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






47. Give a 25% barium solution for upper GI series - and give At what dose?






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






49. Lead equivalent for thyroid sheild






50. Calcium tungstate - rare earth elements