Radiologic Science Exam Review
Course Introduction
Radiologic Science introduces students to the fundamental principles and practices of medical imaging, focusing on the use of ionizing radiation and other modalities for the diagnosis, treatment, and monitoring of diseases. The course covers topics such as anatomy and physiology as visualized through imaging, radiation physics, radiobiology, patient care techniques, image production and evaluation, and safety protocols in radiologic procedures. Students will also explore the ethical and legal aspects of radiologic technology, along with advancements in digital imaging and specialized imaging techniques. Designed for those pursuing careers in healthcare, this course provides both theoretical knowledge and practical skills essential for effective clinical practice in radiologic science.
Recommended Textbook
Radiographic Imaging and Exposure 3rd Edition by Terri L. Fauber
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12 Chapters
345 Verified Questions
345 Flashcards
Source URL: https://quizplus.com/study-set/1335
Page 2
Chapter 1: Radiation and Its Discovery
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20 Verified Questions
20 Flashcards
Source URL: https://quizplus.com/quiz/26639
Sample Questions
Q1) What type of tube was Roentgen working with in his lab when x-rays were discovered?
A) Crookes tube
B) Fluorescent tube
C) High-vacuum tube
D) Wurzburg tube
Answer: A
Q2) Chemical changes may occur as a result of exposure to ionizing radiation.
A)True
B)False
Answer: True
Q3) X-ray photons are capable of traveling around corners.
A)True
B)False
Answer: False
Q4) X-rays are invisible.
A)True
B)False Answer: True
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Chapter 2: The X-Ray Beam
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25 Verified Questions
25 Flashcards
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Sample Questions
Q1) mA is a measure of _____ that flows from cathode to anode.
A) filament current
B) tube current
C) space charge
D) thermionic emission
Answer: B
Q2) Increasing the kVp will do which of the following?
A) Decrease the tube current.
B) Increase the speed of the electrons.
C) Increase the penetrability of the beam.
D) b and c
Answer: D
Q3) The maximum speed the rotating anode will most likely achieve is _____ rpm.
A) 3200
B) 5000
C) 10,000
D) 20,000
Answer: C
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Chapter 3: Radiographic Image Formation
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26 Verified Questions
26 Flashcards
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Sample Questions
Q1) _____ is the loss of some of the energy from the x-ray beam as it passes through the tissue being imaged.
A) Compensating filtration
B) Attenuation
C) Photon transmission
D) Photoelectric scattering
Answer: B
Q2) The digital radiographic system that uses a cassette is:
A) DR.
B) CT.
C) CS.
D) CR.
Answer: D
Q3) As compared to the image at the input phosphor, the image at the output phosphor of the image intensifier is:
A) brighter and smaller.
B) dimmer and smaller.
C) brighter and larger.
D) dimmer and larger.
Answer: A
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Chapter 4: Radiographic Image Quality: Photographic Properties
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35 Verified Questions
35 Flashcards
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Sample Questions
Q1) Which of the following changes will result in increased density with no change in contrast?
A) Increased SID
B) Decreased SID
C) Increased collimation
D) Decreased collimation
Q2) Kilovoltage does not affect radiographic density until adequate penetration is reached.
A)True
B)False
Q3) When imaging the thoracic spine, in order to take advantage of the anode heel effect, the most superior portion of the patient's spine should be placed beneath:
A) the anode end of the tube.
B) the cathode end of the tube.
C) the middle of the tube.
D) either end; it doesn't matter when imaging the thoracic spine.
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6
Chapter 5: Radiographic Image Quality: Geometric Properties
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25 Verified Questions
25 Flashcards
Source URL: https://quizplus.com/quiz/26643
Sample Questions
Q1) The ability of the system to differentiate between two small objects that have similar subject contrast refers to:
A) contrast resolution.
B) spatial resolution.
C) geometric unsharpness.
D) distortion.
Q2) The relationship of the focal spot size, SID, and OID specifically impacts the _____ of the image.
A) visibility of recorded detail
B) image receptor unsharpness
C) geometric unsharpness
D) distortion
Q3) The smallest detail that can be detected in an image refers to:
A) contrast resolution.
B) spatial resolution.
C) geometric unsharpness.
D) distortion.
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Page 7
Chapter 6: Scatter Control
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30 Verified Questions
30 Flashcards
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Sample Questions
Q1) The number of lead strips per inch in a grid is a measure of:
A) grid selectivity.
B) grid ratio.
C) grid frequency.
D) contrast improvement number.
Q2) Also called lateral decentering, the _____ grid error results when the central ray is not aligned to the middle of a focused grid.
A) off-level
B) off-focus
C) off-center
D) upside-down focused
Q3) Why does the air-gap technique work?
A) The scatter photons increase in energy as a result of the distance to the image receptor.
B) The scatter photons are more likely to miss the image receptor.
C) Less scatter is produced.
D) a and c
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Chapter 7: Image Receptors
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32 Verified Questions
32 Flashcards
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Sample Questions
Q1) What is the effect of the presence of a dye in the phosphor layer of the intensifying screen?
A) Decreased speed, increased recorded detail, and increased patient dose
B) Decreased speed, increased recorded detail, and decreased patient dose
C) Increased speed, decreased recorded detail, and increased patient dose
D) Increased speed, decreased recorded detail, and decreased patient dose
Q2) What is the outermost layer of radiographic film called?
A) Emulsion
B) Supercoat
C) Base
D) Gelatin
Q3) What is the term generally used to describe the emission of light from a substance as the result of external stimulation?
A) Luminescence
B) Phosphorescence
C) Fluorescence
D) Incandescence
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9
Chapter 8: Radiographic Film Processing
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30 Verified Questions
30 Flashcards
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Sample Questions
Q1) If the developer temperature is too high, the processed image will appear:
A) milky.
B) dark.
C) light.
D) streaked.
Q2) The developer solution requires a(n) _____ environment.
A) cold
B) alkaline
C) acidic
D) dry
Q3) A safelight fog quality control test should be performed:
A) daily.
B) weekly.
C) quarterly.
D) semi-annually.
Q4) Which of the following is/are reducing agents found in the developer solution?
A) Phenidone
B) Hydroquinone
C) Ammonium thiosulfate
D) a and b
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Chapter 9: Sensitometry
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30 Verified Questions
30 Flashcards
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Sample Questions
Q1) What is the range of diagnostic densities on the radiograph?
A) 0.5-1.5
B) 0.25-2.5
C) 0.5-2.0
D) 0.5-3.0
Q2) Which of the following has an inverse relationship with contrast?
A) Density
B) Average gradient
C) Latitude
D) Speed
Q3) What aspect of a film does the term gamma describe?
A) Speed
B) Latitude
C) Contrast
D) Base + fog
Q4) What aspect of the sensitometric curve represents the contrast of a film?
A) Toe
B) Shoulder
C) Slope
D) a and c
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Chapter 10: Exposure Factor Selection
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22 Verified Questions
22 Flashcards
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Sample Questions
Q1) If a part measures 14 cm and requires the use of 75 kVp, how much kVp would a part measuring 18 cm require when using a variable kVp/fixed mAs technique chart?
A) 67 kVp
B) 77 kVp
C) 83 kVp
D) 91 kVp
Q2) The technique chart will provide information as to how to recognize and compensate for additive pathology.
A)True
B)False
Q3) If a technique chart is being used and the resultant image is overexposed, the technologist should assume the chart is inaccurate and come up with his or her own exposure factors.
A)True
B)False
Q4) Optimal kVp values for each anatomic area have been established.
A)True
B)False
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Chapter 11: Automatic Exposure Control
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30 Verified Questions
30 Flashcards
Source URL: https://quizplus.com/quiz/26649
Sample Questions
Q1) The most common cause for repeating images done with film-screen and AEC is inaccurate:
A) kVp selection.
B) back-up mAs selection.
C) centering.
D) alignment of the tube and image receptor.
Q2) In order to become familiar with manual technical factors (i.e., setting mAs and kVp and not using AEC), it is very helpful to pay attention to the:
A) exposure time.
B) heat units.
C) density control.
D) mAs readout.
Q3) What describes the shortest exposure time required for the AEC device to operate?
A) Backup time
B) Minimum response time
C) Master density time
D) a and c
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13
Chapter 12: Digital Imaging
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40 Verified Questions
40 Flashcards
Source URL: https://quizplus.com/quiz/26650
Sample Questions
Q1) What is the graphical display of the pixel values during digital radiography known as?
A) Matrix
B) Histogram
C) Pixel
D) Voxel
Q2) Which imaging method(s) require(s) the shortest time from exposure to image viewing?
A) Film-screen
B) CR
C) DR
D) a and b
Q3) Which imaging method(s) is/are difficult to use for mobile radiography?
A) Film-screen
B) CR
C) DR
D) b and c
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Page 14