Radiography Exam Solutions
Course Introduction
Radiography is a course focused on the fundamental principles and practices of medical imaging using X-rays. It covers the physics of radiation, image production, radiation safety, patient positioning, and interpretation of radiographic images. Students explore both theoretical concepts and practical techniques for producing high-quality diagnostic images, while adhering to professional, ethical, and safety standards in clinical settings. The course also introduces various radiographic equipment and technologies, preparing students for further specialization or professional practice in medical imaging and diagnostic radiography.
Recommended Textbook
Radiographic Imaging and Exposure 5th Edition by Terri L. Fauber
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10 Chapters
621 Verified Questions
621 Flashcards
Source URL: https://quizplus.com/study-set/2258
Page 2
Chapter 1: Radiation and Its Discovery
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42 Verified Questions
42 Flashcards
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Sample Questions
Q1) When were x-rays discovered?
A) October 8, 1985
B) November 8, 1895
C) January 23, 1896
D) August 15, 1902
Answer: B
Q2) It is the radiographer's responsibility to minimize the radiation dose to the patient,to themselves,and to others in accordance with the As Low As Reasonably Achievable (ALARA)principle.
A)True
B)False
Answer: True
Q3) In the formula c = lv,v represents:
A) frequency.
B) the speed of light.
C) wavelength.
D) kinetic energy.
Answer: A
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Chapter 2: The X-Ray Beam
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66 Verified Questions
66 Flashcards
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Sample Questions
Q1) Added tube filtration is typically made of:
A) lead.
B) tungsten.
C) glass.
D) aluminum.
Answer: D
Q2) The speed the electrons inside the x-ray tube travel is:
A) the speed of light.
B) approximately one half the speed of light.
C) dependent on the mAs set.
D) dependent on the exposure time set.
Answer: B
Q3) _____ is the phenomenon that occurs around the filament during thermionic emission and prevents the further escape of electrons from the filament.
A) Saturation current
B) Space charge effect
C) mA rectification
D) Line focus principle
Answer: B
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Page 4
Chapter 3: Image Formation and Radiographic Quality
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68 Verified Questions
68 Flashcards
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Sample Questions
Q1) Brightness/density is a quality related to the _____________ of the radiographic image.
A) visibility of structures
B) accuracy of structural lines
C) spatial resolution
D) B and C
Answer: A
Q2) When the x-ray photon strikes an atom within the tissue being imaged and loses all of its energy to an inner shell electron of that atom,the photon is said to have been _____ and undergone the _____.
A) transmitted; Compton effect
B) absorbed; photoelectric interaction
C) attenuated; Compton effect
D) scattered; coherent interaction
Answer: B
Q3) The Compton interaction can occur within all diagnostic x-ray energies.
A)True
B)False
Answer: True
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Page 5
Chapter 4: Digital Imaging
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101 Verified Questions
101 Flashcards
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Sample Questions
Q1) The ability of the detector to accurately capture the variety of photon intensities in the remnant radiation is:
A) pixel depth.
B) dynamic range.
C) ALARA.
D) pixel sensitivity.
Q2) Based on the histogram analysis,consistent image brightness is accomplished through:
A) adjustment of window width.
B) automatic rescaling.
C) manipulation of the exposure indicator.
D) manipulation of the LUT.
Q3) With CR,a higher sampling frequency results in _____________ pixel size and ____________ spatial resolution.
A) increased; increased
B) increased; decreased
C) decreased; increased
D) decreased; decreased
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Chapter 5: Film-Screen Imaging
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69 Verified Questions
69 Flashcards
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Sample Questions
Q1) The most important performance criterion of a film illuminator is:
A) its size.
B) the uniformity of light intensity.
C) the illuminator display matrix.
D) having the brightest possible light.
Q2) The ability of radiographic film to provide a certain level of image contrast is the:
A) film sensitivity.
B) film speed.
C) intensifying screen type.
D) film contrast.
Q3) What influences the speed of radiographic film?
A) The amount of silver halide crystals in the emulsion
B) The color of the dye added to the film base
C) The size of the silver halide crystal
D) A and C
Q4) The greater the film speed,the ______ sensitive it is.
A) more
B) less
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Chapter 6: Exposure Technique Factors
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67 Verified Questions
67 Flashcards
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Sample Questions
Q1) In order to image a structure that is located anteriorly in the body,it is best radiographed to minimize magnification by doing a(n)_____ projection.
A) posterior-anterior
B) anterior-posterior
C) lateral
D) oblique
Q2) Increasing tube filtration results in an x-ray beam with __________________ quantity and ___________ energy.
A) less; lower
B) less; higher
C) more; lower
D) more; higher
Q3) The relationship between distance and x-ray beam intensity,specifically that the intensity of the x-ray beam is inversely proportional to the square of the distance from the source,is the:
A) direct square law.
B) Gurney-Mott theory.
C) inverse square law.
D) magnification law.
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Page 8
Chapter 7: Scatter Control
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55 Verified Questions
55 Flashcards
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Sample Questions
Q1) What is the result of imaging a thicker part or patient?
A) More Compton interactions
B) Decreased scatter
C) Increased radiographic contrast
D) Decreased fog
Q2) Decreasing collimation results in:
A) a smaller field size.
B) a larger field size.
C) decreased patient dose.
D) less scatter production.
Q3) Which of the following are tools that the radiographer can use to limit scatter radiation?
A) Beam-restricting devices
B) Radiographic grids
C) Digital imaging plate
D) A and B
E) B and C
Q4) An adult's knee measuring 14 cm should be radiographed without a grid.
A)True
B)False
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Chapter 8: Exposure Technique Selection
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57 Verified Questions
57 Flashcards
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Sample Questions
Q1) Departmental standards,such as the SID or whether an examination is done tabletop or Bucky,should be determined:
A) prior to the development of technique charts.
B) after the development of technique charts.
C) at the same time as the development of technique charts.
D) whenever the department can come to an agreement.
Q2) Where is the sensor located in an automatic exposure device with a gas-filled chamber?
A) In front of the patient
B) Behind the Bucky tray
C) In front of the image receptor
D) On the tabletop
Q3) If a technique chart is being used,and the IR is overexposed,the radiographer should assume the chart is inaccurate and come up with his or her own exposure factors.
A)True
B)False
Q4) Technique charts are still needed when using AEC.
A)True
B)False
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Chapter 9: Image Evaluation
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25 Verified Questions
25 Flashcards
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Sample Questions
Q1) An area of decreased brightness visualized on a computer monitor has ________density on a film image.
A) increased
B) decreased
C) no
Q2) When using a digital imaging system,changing from 40 in SID to 72 in SID would result in _____________ brightness and ____________ contrast.
A) no change in; no change in
B) decreased; increased
C) no change in; decreased
D) decreased; decreased
Q3) When using a digital imaging system,changing from 8 × 10 collimation to 14 × 17 collimation would result in _____________ brightness and ____________ contrast.
A) no change in; no change in B) decreased; increased
C) no change in; decreased
D) decreased; decreased
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11
Chapter 10: Dynamic Imaging: Fluoroscopy
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71 Verified Questions
71 Flashcards
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Sample Questions
Q1) The purpose of a camera tube or CCD is to record the fluoroscopic image.
A)True
B)False
Q2) In comparison,the vidicon camera tube has ______________ spatial resolution,and the CCD requires ________________ radiation to produce a good fluoroscopic image.
A) less; more
B) less; less
C) better; more
D) better; less
Q3) Increasing the mA is the way to correct a fluoroscopic image that has:
A) noise.
B) pincushion appearance.
C) vignetting.
D) magnification.
Q4) Which of the following requires more radiation to produce quality fluoroscopic images?
A) Conventional image intensifier
B) Flat-panel detector in place of image intensifier
C) There is no difference between the two.
Page 12
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