Radiologic Technology Exam Preparation Guide
Course Introduction
Radiologic Technology is a comprehensive course that introduces students to the principles and practices of diagnostic imaging. The curriculum covers foundational topics such as anatomy, patient care, radiation safety, and image acquisition techniques. Students learn to operate a variety of imaging equipment, interpret radiographic results, and adhere to ethical and legal standards within healthcare environments. Emphasis is placed on developing both technical proficiency and effective communication skills to ensure quality patient experiences and accurate diagnostic outcomes in clinical settings.
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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Page 2
Chapter 1: Radiation and Its Discovery
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20 Verified Questions
20 Flashcards
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Sample Questions
Q1) The first radiograph produced by Roentgen, of his wife's hand, required an exposure time of:
A) 15 seconds.
B) 150 seconds.
C) 15 minutes.
D) 150 minutes.
Answer: C
Q2) X-ray photons are capable of traveling around corners.
A)True
B)False
Answer: False
Q3) 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
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Chapter 2: The X-Ray Beam
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25 Flashcards
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Sample Questions
Q1) The positive side of the x-ray tube is the:
A) anode.
B) cathode.
C) window.
D) stream of electrons.
Answer: A
Q2) Effective compensation for the anode heel effect would involve positioning:
A) the thinnest portion of the part under the anode.
B) the thickest portion of the part under the anode.
C) the thinnest portion of the part under the cathode.
D) b and c
Answer: A
Q3) The _____ is the portion of the x-ray tube that contains the filament.
A) cathode
B) anode
C) rotor
D) rotating disk
Answer: A
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4
Chapter 3: Radiographic Image Formation
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26 Verified Questions
26 Flashcards
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Sample Questions
Q1) The x-ray beam that leaves the patient in the direction of the image receptor is often referred to as:
A) primary radiation.
B) exit radiation.
C) absorbed radiation.
D) scattered radiation.
Answer: B
Q2) Unwanted density on the radiograph due to scatter radiation is called:
A) latent.
B) manifest.
C) fog.
D) backscatter.
Answer: C
Q3) The photoelectric effect is dependent on both the energy of the x-ray photon and the composition of the anatomic tissue.
A)True
B)False
Answer: True
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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) If the first radiograph of a foot is done using 4 mAs at 40 inches and a second radiograph is done using 50 inches, how much mAs should be used to maintain density?
A) 1 mAs
B) 2 mAs
C) 6 mAs
D) 12 mAs
Q2) Which one of the following immobilizing devices requires an increase in the exposure technique?
A) Fiberglass cast
B) Plaster cast
C) Air splint
D) b and c
Q3) An abdomen image is done using 66 kVp and 40 mAs. Image density is appropriate but the image has too high (short scale) contrast. Which of these exposure factors would be the best change to make?
A) 56 kVp and 60 mAs
B) 66 kVp and 20 mAs
C) 76 kVp and 40 mAs
D) 76 kVp and 20 mAs
Page 6
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Chapter 5: Radiographic Image Quality: Geometric Properties
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Sample Questions
Q1) If the object size measures 6.2 inches and the image size measures 7.5 inches, what is the magnification factor?
A) 0.83
B) 1.21
C) 1.30
D) 13.7
Q2) The smallest detail that can be detected in an image refers to:
A) contrast resolution.
B) spatial resolution.
C) geometric unsharpness.
D) distortion.
Q3) The property of the x-ray beam that impacts the unsharpness on the radiograph is beam:
A) quality.
B) quantity.
C) divergence.
D) restriction.
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Page 7
Chapter 6: Scatter Control
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Sample Questions
Q1) Which beam restriction device can be cut to the size needed?
A) A collimator
B) An aperture diaphragm
C) A cylinder
D) A cone
Q2) Which of the following is NOT a way to reduce 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.
Q3) In general, when should a grid be used?
A) When part thickness exceeds 4 cm
B) When kV exceeds 40 kVp
C) When kV exceeds 1.02 MeV
D) When part thickness exceeds 10 cm
Q4) 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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Sample Questions
Q1) What is the term used to describe the color of light to which a radiographic film is sensitive?
A) Chromatic spectrometry
B) Orthochromatic sensitivity
C) Panchromatic matching
D) Spectral sensitivity
Q2) What is the term specifically used to describe the emission of light during and after external stimulation?
A) Luminescence
B) Phosphorescence
C) Fluorescence
D) Incandescence
Q3) The DR detector array is typically located:
A) inside the cassette.
B) by the computer keyboard.
C) on top of the table.
D) where you would normally find the Bucky tray.
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Chapter 8: Radiographic Film Processing
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Sample Questions
Q1) Stopping the development process takes place during:
A) developing.
B) washing.
C) fixing.
D) drying.
Q2) At what stage does the process of removing unexposed and undeveloped silver halide from the emulsion occur?
A) Developing
B) Fixing
C) Washing
D) Drying
Q3) 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
Q4) Radiographs should be dried to remove at least 95% of their moisture.
A)True
B)False
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Chapter 9: Sensitometry
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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) The _____ indicates the intensity of exposure needed to produce a density of 1.0 plus B+F.
A) speed point
B) dynamic range
C) speed exposure point
D) latitude
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
Q4) The lower the speed exposure point, the faster the film speed.
A)True
B)False
Page 11
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Chapter 10: Exposure Factor Selection
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Sample Questions
Q1) What is the appropriate change in kVp when using a variable kVp/fixed mAs technique chart for a 1 cm change in tissue thickness?
A) 2 kVp
B) 4 kVp
C) 6 kVp
D) 10 kVp
Q2) 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
Q3) What is the purpose of a technique chart?
A) To decrease patient exposure by always using the highest kVp required
B) To ensure consistent image quality
C) To reduce repeats due to technique error and, in turn, reduce patient exposure
D) b and c
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 Flashcards
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Sample Questions
Q1) A good reason to use density control is to make the film darker to compensate for improper centering.
A)True
B)False
Q2) When the radiographer is considering whether to repeat a film using AEC, it is important to determine the reason why the first radiograph failed.
A)True
B)False
Q3) 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 table-top
Q4) Which automatic exposure device works by using a gas-filled chamber?
A) Phototimer
B) Diode sensor
C) Ionization chamber
D) Bucky proliferator
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Chapter 12: Digital Imaging
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40 Verified Questions
40 Flashcards
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Sample Questions
Q1) What type of laser is used to release the energy stored in the CR phosphor?
A) Neon-helium
B) Argon
C) Krypton
D) Fluorohalide
Q2) Where is the latent image in computed radiography formed?
A) In the CRT screen
B) In the photostimulable phosphor
C) In the photomultiplier tube
D) In the analog-to-digital converter
Q3) The pixel bit depth determines the amount of shades of gray the system is capable of displaying on the digital image.
A)True
B)False
Q4) Which of the following digital imaging systems uses a photostimulable phosphor?
A) Digital fluoroscopy
B) Computed radiography
C) Direct conversion DR
D) Charge-coupled device
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