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






2. The electrical current sent through the filament to cause this electron release is called






3. With what kind of typical film do we get 95% exposure due to visible light and 5% is due to the x-rays directly






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






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






6. Dislocations or separations






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






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






9. What type of cystogram uses air and hypaque






10. Must change if the FFD changes






11. These screens are the most common type - they give good resolution with relatively low exposure






12. The smaller the focal spot






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






14. Lead equivalent for apron






15. Is influenced by quantity of x-rays(mAs) - quality of x-rays (kVp) - type and thickness of tissue being x-rayed






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






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






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






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






20. Within the collimator outlines just how much is collimated






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






22. Compound of silver and bromine - chlorine - or iodine - all of which are in the halogen group of elements






23. Infection of a disk - or bone near it






24. If the kVp is too low






25. An invisible image on the x-ray film Which becomes visible after it has been processed in the manual or automatic processor






26. For bladder cystography - we use what contrast material instead of barium






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






28. Must be radiolucent






29. Ideally is very small






30. If the kVp is too high






31. Extra vertebrae - scoliosis - fused vertebrae are all examples of






32. Size film we use here






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






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






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






36. Weakness






37. Radiographic signs dont always agree with what






38. What is the term for the spotty appearance on the film due to the large crystals in the screens






39. Longer wavelengths of electromagnetic radiation have more penetrating power






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






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






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






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






44. In the dark room - the safe light (red light) needs to be at least how far away from the loading bench






45. Collimator






46. What type of bone tumors started elsewhere and spread to the location it was found






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






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






49. This gives you the desired mAs - and it gives less time for your patient to move






50. Types of cell damage