Introduction to Radiography Exam Preparation Guide
Course Introduction
Introduction to Radiography provides students with a foundational understanding of the principles and practices of medical imaging using X-rays and related technologies. The course covers the history, development, and purpose of radiography in diagnosing and treating diseases. Students will explore basic concepts of radiation physics, image production, radiation safety, and the roles and responsibilities of radiographers within a healthcare team. Emphasis is placed on patient care, ethical considerations, and professional standards, preparing students for further study and practical experience in radiographic procedures.
Recommended Textbook
Radiographic Imaging and Exposure 5th Edition by Terri L. Fauber
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10 Chapters
621 Verified Questions
621 Flashcards
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Page 2
Chapter 1: Radiation and Its Discovery
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42 Verified Questions
42 Flashcards
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Sample Questions
Q1) X-rays are able to interact with certain materials and produce light energy.
A)True
B)False
Answer: True
Q2) X-rays cannot be focused with a lens.
A)True
B)False
Answer: True
Q3) The Greek symbol lambda (l)represents the x-ray's:
A) wavelength.
B) speed.
C) frequency.
D) quantity.
Answer: A
Q4) X-rays used in radiography have wavelengths that are measured in:
A) angstroms.
B) millimeters.
C) centimeters.
D) hertz.
Answer: A
Page 3
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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) The maximum speed the rotating anode will typically achieve is _____ rpm.
A) 3200
B) 5000
C) 10,000
D) 20,000
Answer: C
Q2) How much is the mAs when 400 mA and 100 ms are used?
A) 4 mAs
B) 40 mAs
C) 400 mAs
D) 4000 mAs
Answer: B
Q3) What is the name of the device in a rotating anode x-ray tube that turns the rotor?
A) Stator
B) Rotor
C) Focusing cup
D) Rheostat
Answer: A
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4
Chapter 3: Image Formation and Radiographic Quality
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68 Verified Questions
68 Flashcards
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Sample Questions
Q1) Unwanted exposure to the IR due to scatter radiation is called:
A) latent.
B) manifest.
C) fog.
D) cloudiness.
Answer: C
Q2) An area of increased brightness on a display monitor will show decreased density on a film image.
A)True
B)False
Answer: True
Q3) The quality of a radiographic image depends on:
A) brightness-visibility of anatomic structures.
B) accuracy of the recorded anatomic structural lines.
C) contrast-visibility of anatomic structures.
D) A and B.
E) A, B, and C.
Answer: E
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Chapter 4: Digital Imaging
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101 Verified Questions
101 Flashcards
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Sample Questions
Q1) Compared with film-screen detectors:
A) digital IRs have a much narrower dynamic range.
B) digital IRs have a much wider dynamic range.
C) digital IRs have no dynamic range.
Q2) Which of the following exposure indicators has an inverse relationship with exposure to the IP?
A) EI (Carestream)
B) lgM (Agfa)
C) S number (Fuji)
D) All have an inverse relationship.
Q3) The DR system does not require a separate reader unit.
A)True
B)False
Q4) An MTF of 1.0 means :
A) no difference in brightness levels.
B) no difference in spatial frequency.
C) maximum difference in brightness levels.
D) A and B.
E) B and C.
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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) Compared to baseline measurements,speed and contrast indicators should not vary more than ±_____ optical density.
A) 0.05
B) 0.10
C) 0.15
D) 0.20
Q2) The greater the film speed,the ______ sensitive it is.
A) more
B) less
Q3) In most 90 s film processors,developer temperature should be kept at approximately:
A) 85° to 88° F.
B) 89° to 91° F.
C) 93° to 95° F.
D) 97° to 99° F.
Q4) Which of the following is a major limitation in film-screen imaging?
A) Limited dynamic range
B) Limited signal-to-noise ratio
C) Increased dynamic range
D) Need for high-resolution monitors
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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) When choosing a grid for an examination,the grid with the highest grid ratio should always be selected in order to most improve image contrast.
A)True
B)False
Q2) If the first radiograph of a foot is done using 4 mAs at 40 in,and a second radiograph is done using 50 in,how much mAs should be used to maintain exposure to the IR?
A) 1 mAs
B) 2 mAs
C) 6 mAs
D) 12 mAs
Q3) The product of milliamperage and exposure time is ______________________ to the quantity of x-rays produced
A) directly proportional
B) inversely proportional
C) not related
Q4) Any increase in magnification results in a decrease in recorded detail.
A)True
B)False
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Chapter 7: Scatter Control
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Sample Questions
Q1) Which of the following influences the amount of scatter radiation striking the image receptor but not the production of scatter radiation?
A) Reduce the exposure field size.
B) Reduce the tissue thickness.
C) Increase the grid ratio.
D) Ask a patient with a large abdomen to lie prone instead of supine.
Q2) Grid ratios range from:
A) 2:1 to 6:1.
B) 4:1 to 16:1.
C) 10:1 to 24:1.
D) 20:1 to 32:1.
Q3) The height of the lead strips relative to the distance between the lead strips is the measure of:
A) contrast improvement.
B) grid ratio.
C) Bucky factor.
D) grid selectivity.
Q4) The only reason a grid should be used is to increase radiographic contrast.
A)True
B)False
Page 9
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Chapter 8: Exposure Technique Selection
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Sample Questions
Q1) Once a predetermined amount of radiation is transmitted through a patient to the AEC detector,which of the following occurs?
A) The x-ray exposure increases.
B) The x-ray exposure decreases.
C) The x-ray exposure terminates.
D) A and B.
Q2) When using a fixed kVp-variable mAs technique chart,if part thickness increases by 5 cm,what needs to happen to the mAs?
A) It should be halved.
B) It should be doubled.
C) It should be quartered.
D) It should be tripled.
Q3) Which of the following is a system that allows the radiographer to select a particular button on the control panel that represents an anatomic area and displays a preprogrammed set of exposure factors?
A) mAs readout
B) Anatomically programmed technique
C) Automatic exposure control
D) Phototiming
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Chapter 9: Image Evaluation
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Sample Questions
Q1) Using a Konica digital imaging system,if an image's S number is 600 while the optimal range ends at 300,this means that the IR was ______________ and the exposure to the IR needs to be ___________________.
A) underexposed; doubled
B) under exposed; halved
C) overexposed; doubled
D) overexposed; halved
Q2) The amount of luminance (light emission)of a display monitor is the:
A) density.
B) contrast.
C) SID.
D) brightness.
Q3) A digital image with decreased spatial resolution may be due to:
1)Increased central ray angulation
2)Decreased grid ratio
3)Decreased SID
A) 1 and 2 only.
B) 1 and 3 only.
C) 2 and 3 only.
D) 1, 2, and 3.
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Chapter 10: Dynamic Imaging: Fluoroscopy
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71 Flashcards
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Sample Questions
Q1) In reference to image intensification,the function that adjusts and maintains the overall image brightness and contrast during the fluoroscopic procedure is:
A) DQE.
B) APR.
C) ABC.
D) AEC.
Q2) A disadvantage of using magnification mode during fluoroscopy is:
A) the image has less resolution.
B) the image brightness is inconsistent.
C) the patient receives additional dose.
D) none of the above.
Q3) When a CCD is exposed to light,it generates and briefly stores light energy.
A)True
B)False
Q4) Which of the following is easier to move around and allows better access to the patient during a procedure?
A) Conventional image intensifier
B) Flat-panel detector in place of image intensifier
C) There is no difference between the two.
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