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






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






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






4. If the thorax is greater than or equal to....you should use a grid






5. Measures the power of penetrability (quality) of the x-rays produced






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






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






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






9. If there's far or muscle in the way of an x-ray - those parts would be






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






11. Increase developing time and temp of developing fluid






12. We are supposed to use a grid if the abdomen is greater than or equal to......






13. General purpose film - forgiving






14. If the kVp is too low






15. Weakness






16. Hairloss or baldness






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






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






19. What must have little or no 'afterglow'






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






21. Refers to the 'blackness' of a radiograph






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






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






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






25. Incorrect grid focus is one reason for






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






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






28. Sheets of luminescent phorphor crystals on a cardboard or plastic base






29. Collimator






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






31. MAs for bone views (pelvis - skull - spine) 2x =?






32. DJD is also called






33. Is the electrical current that heats the filament






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






35. What is the term for an unknown cause






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






37. Must be radiolucent






38. Rotating anode






39. The exact area of the anode that the electrons hit






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






41. White against black - like the x-ray of a plain skeleton






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






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






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






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






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






47. What type of film has the x-rays directly cause the latent image to be formed






48. Between density and kVp






49. Negative contrast agents appear what color on a radiograph






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