Radiologic Technology
Exam Materials
Course Introduction
Radiologic Technology is a comprehensive course designed to introduce students to the principles, procedures, and applications of diagnostic imaging. The course covers the fundamental concepts of radiology, including the physics of radiation, safety protocols, image acquisition, and the operation of radiologic equipment. Students learn patient positioning, exposure techniques, image evaluation, and the ethical and legal aspects of radiographic practice. Emphasis is placed on developing proficiency in producing high-quality diagnostic images while minimizing radiation exposure to patients and healthcare staff. This course prepares students for clinical practice and further study in medical imaging sciences.
Recommended Textbook
Radiographic Imaging and Exposure 3rd Edition by Terri L. Fauber
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12 Chapters
345 Verified Questions
345 Flashcards
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Chapter 1: Radiation and Its Discovery
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20 Verified Questions
20 Flashcards
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Sample Questions
Q1) The frequency of a wave is the number of waves passing a given point per given unit of time. Frequency is measured in:
A) angstroms.
B) Hertz.
C) inches.
D) eV.
Answer: B
Q2) The distance between two successive crests of a sine wave is known as:
A) an angstrom.
B) frequency.
C) the Greek letter nu.
D) wavelength.
Answer: D
Q3) X-rays carry a negative charge that causes ionization.
A)True
B)False
Answer: False
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Page 3
Chapter 2: The X-Ray Beam
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25 Verified Questions
25 Flashcards
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Sample Questions
Q1) Which of the following could be defined as the production of an x-ray photon by a collision between the incident electron and a K-shell electron of the tungsten atom?
A) Photoelectric interaction
B) Bremsstrahlung interaction
C) Characteristic interaction
D) Pair production interaction
Answer: C
Q2) The focusing cup:
A) surrounds the anode.
B) has a positive charge.
C) has a negative charge.
D) focuses the x-ray beam.
Answer: C
Q3) What is the base material of the rotating anode?
A) Molybdenum
B) Tungsten
C) Rhenium
D) Beryllium
Answer: A
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Page 4
Chapter 3: Radiographic Image Formation
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26 Verified Questions
26 Flashcards
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Sample Questions
Q1) When the x-ray photon travels completely through the part, that activity is called:
A) acceleration.
B) penetration.
C) transmission.
D) absorption.
Answer: C
Q2) The x-ray photon that is scattered as a result of the Compton effect CANNOT:
A) be absorbed in the tissue, resulting in additional patient exposure.
B) strike the image receptor, resulting in useful anatomic information.
C) strike the image receptor, resulting in additional density but no useful information.
D) exit the patient, exposing persons near the patient.
Answer: B
Q3) Imaging of the movement of internal structures is known as:
A) image intensification.
B) digital imaging.
C) the photoelectric effect.
D) fluoroscopy.
Answer: D
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5
Chapter 4: Radiographic Image Quality: Photographic Properties
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35 Verified Questions
35 Flashcards
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Sample Questions
Q1) Contrast is a _____ property of the radiographic image.
A) photographic
B) geometric
C) detail
D) a and c
Q2) Generally speaking, what do additive pathologic conditions require?
A) Increased focal spot size
B) Increased mA
C) Increased kVp
D) Increased SID
Q3) Kilovoltage does not affect radiographic density until adequate penetration is reached.
A)True
B)False
Q4) In order to reduce patient exposure, a _____ kVp and _____ mAs should be used when possible.
A) lower, higher
B) higher, higher
C) higher, lower
D) it makes no difference
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Chapter 5: Radiographic Image Quality: Geometric Properties
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25 Verified Questions
25 Flashcards
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Sample Questions
Q1) The unit of line pairs per millimeter is a measure of:
A) distortion.
B) resolution.
C) magnification.
D) quantum mottle.
Q2) Providing clear instructions to the patient is a primary method for reducing unsharpness due to:
A) shape distortion.
B) motion.
C) geometric properties.
D) size 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.
Q4) All of the geometric factors and those that determine the amount of image distortion are equally important for digital and film-screen imaging.
A)True
B)False
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Chapter 6: Scatter Control
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30 Flashcards
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Sample Questions
Q1) Which of the following is true of scattered radiation?
A) It is produced when the x-ray beams interact with the air prior to striking the patient and results in significant image fog.
B) It can be prevented by reducing the exposure field, increasing tissue thickness, and using faster screens.
C) It may result in an increase in image contrast that reduces the unsharpness of the image.
D) It is most easily controlled by using collimation and a grid.
Q2) An optimal AP abdomen radiograph can be produced using 40 mAs, 75 kVp and a 12:1 grid. How much mAs would be needed if the only grid available is a 6:1 ratio grid?
A) 20 mAs
B) 24 mAs
C) 67 mAs
D) 80 mAs
Q3) The results of the collimator alignment quality control test should demonstrate that the alignment is within 5% of the SID used.
A)True
B)False
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Chapter 7: Image Receptors
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32 Flashcards
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Sample Questions
Q1) Which layer of the intensifying screen is closest to the film?
A) Protective layer
B) Base
C) Phosphor layer
D) Emulsion
Q2) Which layer of the intensifying screen is the furthest from the film?
A) Base
B) Reflective layer
C) Phosphor layer
D) Adhesive
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) How can you describe a noisy image?
A) An image with noticeable quantum mottle
B) An image that is high-quality and has high contrast
C) An image without quantum mottle
D) An image created with high mAs
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Chapter 8: Radiographic Film Processing
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30 Flashcards
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Sample Questions
Q1) Stopping the development process takes place during:
A) developing.
B) washing.
C) fixing.
D) drying.
Q2) Which system best achieves agitation, continuous mixing, and filtration of the processing solutions?
A) Transport system
B) Temperature control system
C) Recirculation system
D) Replenishment system
Q3) While in the developer solution, additional electrons are added to the:
A) fixer.
B) silver.
C) sensitivity specks.
D) water.
Q4) One and one half minutes (90 seconds) is a typical processing cycle.
A)True
B)False
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Chapter 9: Sensitometry
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30 Verified Questions
30 Flashcards
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Sample Questions
Q1) When evaluating characteristic curves, which of the following best describes the film with the curve furthest to the left?
A) Fastest
B) Slowest
C) One with the most latitude
D) b and c
Q2) A film that allows 100% of the incident light to be transmitted has a logarithmic value of:
A) 0.
B) 10.
C) 50.
D) 100.
Q3) Which portion of the curve should be evaluated to assess the range of exposures over which a film produces diagnostic densities?
A) Toe
B) Straight-line
C) Shoulder
D) a or c
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Chapter 10: Exposure Factor Selection
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22 Flashcards
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Sample Questions
Q1) What are calipers used for?
A) To measure the mA
B) To select the S number
C) To select focal spot size
D) To measure the part
Q2) Technique charts are still needed when using Automatic Exposure Control (AEC).
A)True
B)False
Q3) Using the concept of comparative anatomy, if a child's elbow measures the same as an adult wrist and all other procedural variables are the same (i.e., SID, image receptor type, etc.), the child's elbow will require _____ in comparison to the adult wrist.
A) less mAs
B) more mAs
C) the same mAs
D) higher kVp
Q4) Optimal kVp values for each anatomic area have been established.
A)True
B)False
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Page 12
Chapter 11: Automatic Exposure Control
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30 Verified Questions
30 Flashcards
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Sample Questions
Q1) Why was automatic exposure control (AEC) originally developed?
A) To decrease the need for technique charts
B) To make the technologist more of a "button pusher"
C) To reduce repeats and improve image quality
D) To increase productivity and patient dose
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 does APR stand for?
A) All programming radiology
B) Anatomically programmed radiography
C) Accurately positioned radiographs
D) None of the above
Q4) When exposure factors are selected using APR, the variables should not be adjusted.
A)True
B)False
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Chapter 12: Digital Imaging
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40 Verified Questions
40 Flashcards
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Sample Questions
Q1) When the image matrix size is increased, resulting in a decreased pixel size, what happens to spatial resolution?
A) It increases.
B) It decreases.
C) There is no change.
Q2) The basic unit of information in a computer is a(n):
A) bit.
B) byte.
C) word.
D) algorithm.
Q3) Increasing the number of pixels in the image matrix will increase:
A) dynamic range.
B) shades of gray.
C) image brightness.
D) spatial resolution.
Q4) What is the matrix of the digital image composed of?
A) Voxels
B) Pixels
C) Grains
D) Solutes
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