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Core module
| Question | Answer |
|---|---|
| Which of the following statements are correct regarding the link between radiation dose and genetic effects | The link has been demonstrated in animal studies. Increased risk to humans cannot be predicted with respect to an individual. |
| Which of the following changes in kilovoltage (kvp) will result in the greatest reduction of patient dose, when Millampere- seconds (mAs) is adjusted to compensate for the change | Increase kVp by 30% |
| Which of the following image receptor system space will result in the lowest patient does | Faster speed IR system |
| What is the primary purpose of using gonad shield during radiography? | Reduce the likelihood genetic effect |
| Which of the following are types of gonad shields | Contact and shadow |
| When should gonad shielding be used? | When the gonads are within 5 cm of the radiation field |
| The greatest cause of unnecessary radiation to the patient that can be controlled by the limited operator is | Repeat exposure |
| Then limited operator can reduce repeat exposure by | Clearly instructing the patient |
| 9. How does x-ray beam restriction minimize patient exposure | It limits the radiation field to the area of interest |
| 10. What is the device that allows the limited operator to vary the size of the radiation field | Collimator |
| 11. How does filtration reduce patient exposure | Removes longer wavelength photons |
| 12. What is the National Council on radiation protection and measurements (NCRP)recommendation for the amount of total filtration | 2.5 mm Al equiv |
| 13. What are the three principal methods used to protect limited operators from unnecessary radiation exposure | Time distance and shielding |
| 14. Which of the following is not a type of personal radiation shielding | Shadow |
| 15. Personal shielding must be worn on the rare occasion during which the limited operator may need to remain in the radiographic room during an exposure to assist the patient and maintaining the proper position. What is the source of the greatest radiati | Scattered radiation from the patient |
| 16. What is the term for radiation that escapes from the x-ray tube housing | Leakage radiation |
| 17. Why you are limited operators prohibited from activities that results in direct exposure to the primary x-ray beam | They are considered occupationally exposed individuals |
| 18. Distance, as a method used to limit operate exposure, means that: | The operator should maximize the distance from the store string and exposure |
| 19. Sheldon horn for personal protection is designed to attenuate what source of exposure | Scatter radiation |
| 20. Which of the following is an acronym for a common type of personal dosimeter | TLD |
| 21. What is the recommended placement for a personal dosimeter on the body of the limited operator | The badge should be worn in the region of the collar on the anterior surface of the body and outside the lead apron if worn |
| 22. What is the NCRP recommended annual effective dose limit for occupational exposure | 5.0rem 0.05Sv |
| 23. When is the NCRP recommended monthly effective (or equivalent)dose limit to the fetus for a pregnant worker | 0.05 rem (0.0005Sv) |
| 24. Radiation monitoring of personnel is required when what percentage of the annual occupational effective dose and limit is likely to be received | 10% |
| 25. What is the conventional (British system )radiation unit to express radiation intensity in the air | Roentgens |
| 26. The conventional (British system ) radiation unit commonly used to report occupational those two radiation workers in the United States is the | Rem |
| 27. What is the conventional (British system) radiation unit of absorbed dose | Rad |
| 28. According to the Bergenfield- tribondeau law, which of the following type of cells are most radioactive | Embryonic tissue cells |
| 29. What type of x-ray photon interaction with the body is primarily responsible for the radiation dose observed by the patient | Photoelectric |
| 30. What is the NCRP (report #102)recommendation for lead equivalency of aprons used for personal protection | 0.25mm |
| 31. What is erythema, as it relates to radiation exposure | Reddening of the skin caused by high radiation dose |
| 32. What is the guiding philosophy of radiation protection | ALARA as low as reasonably achievable |
| 33. Which of the following statements reflects current scientific opinion regarding the effects of diagnostic levels of ionizing radiation | There is an increased risk of cancer, leukemia, birth defects, and cataracts |
| 34. Which of the following changes will decrease patient does | Using a faster speed class imaging system and increasing the KVP using the 15% rule while decreasing the MAS to compensate |
| 35. When radiation exposure occurs during pregnancy the greatest risk of birth defects occurs when the exposure | Exceeds 5 rad to the uterus and occurs within the first trimester pregnancy |
| 36. At what KVP levels to Compton interactions occur | They occur throughout the diagnostic radiology KVP range |
| 37. What is the principal source of scatter radiation in radiography | The patient |
| 38. What are the four essential elements required for x-ray production | A target, a vacuum, and electron source, and a high potential difference |
| 39. The greatest portion of the x-ray beam is made up of | Bremsstrahlung radiation |
| 40. The penetrating power of the x-ray beam is controlled by varying the | Kilovoltage (kvp) |
| 41. Which of the following functions involve the auto transformer | Kvp selection |
| 42. What is the IR then she has for competed radiography | Automatic exposure control |
| 43. Nearly all new x-ray machines manufacture today use. generators | High- frequency |
| 44. The target of the x-ray tube is made of | Tungsten |
| 45. What is the standard control limit for the field light to radiation field alignment test | +_2% of SID |
| 46. What is the standard control limit for the beam (central Ray) alignment test | Within 1 degree of perpendicular |
| 47. How often should let aprons and gloves be checked for cracks or holes | Every six months |
| 48. How can detect your fog be prevented when using computers radiography cassettes | Protect the cassette before and after exposure |
| 49. Which of the following will result in increased reception exposure | Increased mA, increased Exposure time, increased kVp |
| 50. If the radio graphic image is over exposed, which of the following changes in exposure factor should be used correct the problem | Decrease the mAs |
| 51. The relationship between S ID and beam intensity is expressed in the | Inverse square law |
| 52. What are the four primary factors of radiographic quality | Receptor exposure, contrast, special resolution, and distraction |
| 53. Contrast is primarily controlled by altering the | KVp |
| 54. A change from the small focal spot to the large focal spot will result in | Decreased spatial resolution |
| 55. Scatter radiation fog affects radiographic quality by causing | Decreased contrast |
| 56. An increase in object image receptor distance (O ID) will result in | Increased magnification |
| 57. Motion of the patient, two, or the I R during the explorer will result in decreased | Spatial resolution |
| 58 what does quantum mottle (noise)look like on a radio graphic image | Finely speckled or grainy areas |
| 59. Quantum motto with digital imaging system is caused by | The mAs being set to low |
| 60. Which of the following well increase spatial resolution | Increased in SID AND QID |
| 61. What is the appearance of a high signal to noise ratio (SNR )image | Highly detailed with very little quantum mottle |
| 62. What is the proper method for storing an open boxes of x-ray film | Standing on the edge |
| 63. Which of the following describe the action of the developer in an automatic film processor | Changes to the exposed silver halide crystals into black, metallic silver |
| 64. During digital imaging processing electronic masking should not be used to replace | Proper radiography collimating |
| 65. Which of the following is Not a component of a computed radiographic plate reader | Developing solution |
| 66. What conditions are most important for optimal feeling of radiographic images | Low room light level |
| 67. Marks, exposures, or images on the radiograph that are not part of the attendant image or called | Artifacts |
| 68. If the amount of irradiated tissue increases, what happens to scatter radiation fog | Scatter radiation fog increased |
| 69. The most effective and practical way to reduce scatter radiation falls on radiograph is to | Use a grid or Bucky |
| 70. That’s a general rule a grid should be employed when the part thickness is greater than | 12 cm |
| 71. Technique charts are based on patient part measurements obtained using an x-ray caliper and are expressed as | Thickness in centimeters |
| 72. Which of the following pathologic conditions would require a decrease in exposure | Multiple myeloma, emphysema, osteoporosis |
| 73. How will the anode heel effect, if present, be seen on an image | The image will be lighter on the anode end than on the cathode end |
| 74. Which radiographic quality factor is most affected by angulation of the central Ray, part, or IR | Distortion |
| 75. What is the recommendation for a hardcopy image that is miss labeled | A sticker with the correct information should be applied to the hard copy image |
| 76. Which of the following will result in a screener film image with low density | Ir exposure with collimation wider than needed for the particular anatomical structures |
| 77. Which of the following will result in a screen or film image with low contrast | IR exposure with a kVp higher than needed for the particular anatomical structures |
| 78.When he digital image on a monitor, how do you determine if the proper MAS was selected | Evaluate the exposure index value |
| 79. And which of the following result in an image with poor spatial resolution | Patient motion |
| 80. I which of the following will result in an image with excessive magnification of image structures | Ir exposure at an OID greater than recommended for a particular anatomical structures |
| 81. Which of the following will result in an image with excessive distortion of anatomical structures | Imporer central Ray angular ion for the selected radiographic projection |
| 82. Poor film or screen contact is seen on a radiograph as a decrease in what radiographic quality factor | Recorded detail or spatial resolution |
| 83. Which screen film image artifact looks like lightning | Static artifact |
| 84. Which of the following would be a violation of patient confidentiality | A limited operator talks about a patient during lunch |
| 85. Which of the following are true regarding informed consent | Informed consent may be revoked at any time |
| 86. A limited operator innocently commits an error as a result of the following the orders are of his or her employer a physician. Employer may be held responsible according to the | Doctrine of respondeat superior |
| 87. Communication has been validated when the speaker has | Received a response from the listener that demonstrates comprehension |
| 88. Which of the following is not a form of nonverbal communication | Speaking |
| 89. Mrs. Elizabeth Dunbar is 86 years old and a bit confused. She is most likely to respond appropriately if you would address her as | Mrs Dunbar |
| 90. Which of the following are correct statements of proper body mechanics no | Use a broad stance and carry heavy objects close to your body |
| 91. What type of disease transmission is possible when they limited operator that’s not clean the Bucky device after performing an examination on a patient with influenza | Indirect contact or fomite transmission |
| 92. Standing for cautions involves the use of barriers when ever contact is anticipated with | Blood, body fluids and mucous membranes |
| 93. The processor reducing the probability that infectious organisms will be transmitted to a susceptible individual is called | Asepsis |
| 94. A healthcare worker single best protection is | Frequent hand washing |
| 95. I am a minute operator who does not change the linens between patients is | Providing an opportunity for fomite transmission |
| 96. What is anaphylaxis | A severe allergic reaction |
| 97. What is the basic life support system used to ventilate the longest and circulate the blood in the event of cardiac or respiratory arrest | CPR |
| 98. When a patient in cardiac arrest presents with a rapid weak and ineffective heartbeat, what device is used in to return the heart to a normal rhythm | AED |
| 99. Which of the following vital signs can be assessed without touching the patient | Respirations |
| 100. What is the most common site for publication of a patient’s pulse | Radial artery at the wrist |
Created by:
Smrtal38