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. General purpose film - forgiving






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






3. The 2 types of collimators are






4. Film with: ultra speed - grainier image - less exposure needed






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






6. Within the collimator outlines just how much is collimated






7. Lead equivalent for thyroid sheild






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






9. AgBr + light =






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






11. Calcium tungstate - rare earth elements






12. 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






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






14. Positive contrast agents appear what color on a radiograph






15. If there's no object in the way of an x-ray - the picture would be






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






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






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






19. Weakness






20. NYSVMS Facility Accreditation Standards






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






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






23. There are......intensifying screens within a cassette






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






25. The type of collimator that we have here






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






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






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






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






30. Must be radiolucent






31. What spinal problem do doberman's get






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






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






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






35. Loss of movement in legs (front and/or back)






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






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






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






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






40. Dislocations or separations






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






42. Monitors personal exposure to radiation






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






44. Is the most common artifact in radiography






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






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






47. Increase what value to penetrate thick body parts






48. Infection of a disk - or bone near it






49. Can cause damage to living cells through the process of excitation or ionization of electrons in the orbits around atoms






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