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Instructions:
  • Answer 50 questions in 15 minutes.
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  • Match each statement with the correct term.
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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 too high






2. Bone - lymphatic cells - epitheilial - and hemopoietic cells are also what kind of cell?






3. 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






4. When.....collide with the anode - 99% of energy is released in the form of heat - and 1% of energy is in the form of x-rays






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






6. The 2 types of collimators are






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






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






9. Slowly growing dividing cells are the most sensitive to the effects of ionizing radiaton






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






11. Calcium 'bridges' between adjacent vertebrae






12. Ideally is very small






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






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






15. Is the electrical current that heats the filament






16. Is the density difference between 2 adjacent areas on a radiograph






17. Lead equivalent for apron






18. Improper centering of grid is one reason for






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






20. Increased thickness of this leads to increased x-ray absorption and increased visible light emission from the crystals






21. Dislocations or separations






22. Amount of radiation a person can recieve in a calendar year






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






24. A layer of intensifying screen that reflects the light from the phosphor layer toward the film






25. When the AgBr reacts and ionizes with light or x-rays - than at this point - What is on the film is known as the






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






27. We ideally take a radiograph of the abdomen at the peak of inspiration






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






29. The smaller the focal spot






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






31. Hairloss or baldness






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






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






34. Another result of the 20 degree angling






35. Film with: high detail - minimal graininess - increased exposure






36. Calcium tungstate - rare earth elements






37. An abdominal radiograph should be taken at the peak of expiration






38. This number in santes' rule refers to the distance the x-ray tube is from the x-ray film






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






40. Is the most common artifact in radiography






41. Faster screens/less detail; slower screens/more detail






42. Radiographic signs dont always agree with what






43. We should always try and stay How many feet from our x-ray machine






44. Must change if the FFD changes






45. What is the term for a negative contrast cystogram where we inject air






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






47. Types of grids






48. Has a positive charge






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






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







Sorry!:) No result found.

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