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






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






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






4. Is the device which restricts (narrows) the beam of x-rays as they leave the x-ray machine






5. If barium leaks into the abdomen or lungs - it can cause what






6. Is only 1/3 the size of the actual focal spot






7. The picture formed after the film has been exposed to x-rays and then processed into a visible image.






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






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






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






11. Calcium 'bridges' between adjacent vertebrae






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






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






14. Has a filament made of tungsten - due to the high melting point






15. If there's metal in the way of an x-ray - than no x-rays will get through and that part would be






16. A clear protective layer on radiographic film






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






18. This is inversely proportional to screen speed






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






20. Growth - gonadal - neoplastic - and metabolically active cells are what kind of cells






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






22. 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)






23. What is the term for when the animal's bowel engulfs a piece of bowel distal to it - causing blockage






24. Another result of the 20 degree angling






25. Hairloss or baldness






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






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






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






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






30. To double the density






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






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






33. Are produced when electrons are slowed down or stopped by atoms in the target area where they are aimed






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






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






36. The smaller the focal spot






37. Extra pain is also called






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






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






40. What are the 2 types of anodes






41. Longer wavelengths of electromagnetic radiation have more penetrating power






42. Screens are classified according to






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






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






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






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






47. Dislocations or separations






48. Grid helps reduce the amount of......






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






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







Sorry!:) No result found.

Can you answer 50 questions in 15 minutes?


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