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. Tilting of the tube or grid is one reason for






2. Types of cell damage






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






4. X-ray machines come with a set one - we cannot adjust it






5. Increase what value to penetrate thick body parts






6. What needs to have high levels of x-ray to light conversion with the correct energy and color for the type of film used






7. Positive contrast agents appear what color on a radiograph






8. To double the density






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






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






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






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






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






14. Is responsible for the number or quantity of x-rays






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






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






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






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






19. Dislocations or separations






20. A type of electromagnetic radiation which have a shorter wavelength than visible light






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






22. These crystals will turn white/clear when processing film






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






24. Between density and kVp






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






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






27. These screens have increased definition/detail - need to have increased radiation exposure






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






29. Is the electrical current that heats the filament






30. The type of collimator that we have here






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






32. Has a negative charge






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






34. Redness of the skin






35. The greater the number of electrons released






36. Longer wavelengths of electromagnetic radiation have more penetrating power






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






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






39. KVp=(2x thickness of body part in cm) + 40

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






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






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






43. Has a positive charge






44. When doing a lateral radiograph of the thorax/chest - the x-ray beam should be centered over what specific anatomical landmark






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






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






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






48. If the kVp is too high






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






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