Diagnostic Imaging Practice Exam
Course Introduction
Diagnostic Imaging is a course designed to provide students with a comprehensive understanding of the principles, techniques, and applications of medical imaging used in clinical practice. Covering modalities such as X-rays, ultrasound, computed tomography (CT), magnetic resonance imaging (MRI), and nuclear medicine, the course emphasizes the physics behind each imaging method, interpretation of normal and abnormal findings, and patient safety considerations. Students will learn how to select appropriate imaging procedures for various clinical scenarios, analyze diagnostic images, and collaborate effectively with other healthcare professionals to facilitate accurate diagnosis and optimal patient care.
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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Chapter 1: Radiation and Its Discovery
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Sample Questions
Q1) X-rays used in radiography have wavelengths that are measured in:
A) angstroms.
B) millimeters.
C) centimeters.
D) hertz.
Answer: A
Q2) It is impossible for x-rays to interact with matter and produce secondary radiation.
A)True
B)False
Answer: False
Q3) An x-ray beam that has photons with many different energies is:
A) homogenous.
B) monoenergetic.
C) heterogeneous.
D) never found.
Answer: C
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Page 3
Chapter 2: The X-Ray Beam
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66 Verified Questions
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Sample Questions
Q1) Inside the x-ray tube envelope you will find:
A) oil.
B) air.
C) A and B.
D) none of the above.
Answer: D
Q2) 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
Q3) In a dual-focus tube,how many filaments are energized at any one time during x-ray production?
A) One
B) Two
C) Four
D) An infinite number
Answer: A
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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) The _____ image occurs first on the image receptor,and the _____ image occurs following proper image development/processing.
A) manifest, latent
B) invisible, latent
C) visible, manifest
D) latent, manifest
Answer: D
Q2) The probability of total photon absorption by the photoelectric effect depends on the:
A) energy of the incoming x-ray photon.
B) energy of the ejected electron.
C) atomic number of the anatomic tissue.
D) A and C.
E) B and C.
Answer: D
Q3) Beam attenuation is increased with a higher-energy x-ray beam.
A)True
B)False
Answer: False
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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) In CR imaging,the ___________ of the imaging plate is scanned.
A) exposed portion
B) top half
C) bottom half
D) entire area
Q2) This post processing technique reduces the visibility of image noise.
A) Smoothing
B) Contrast enhancement
C) Edge enhancement
D) Subtraction
Q3) The _________ provides a method of altering the image to change the display of the digital image.
A) histogram
B) lookup table
C) exposure indicator
D) matrix
Q4) Because digital imaging has a large dynamic range,significantly lower than necessary x-ray exposure will still result in a quality image.
A)True
B)False
Page 6
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Chapter 5: Film-Screen Imaging
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Sample Questions
Q1) What are the physical imperfections in the emulsion layer of radiographic film called?
A) Rare earth phosphors
B) Calcium tungstate
C) Sensitivity specks
D) Silver halide crystals
Q2) Metallic replacement and the electrolytic method are used in:
A) developing the film.
B) fixing the film.
C) processor quality control.
D) silver recovery.
Q3) The Gurney-Mott theory is associated with:
A) CR latent image formation.
B) film latent image formation.
C) DR latent image formation.
D) rare earth phosphor intensifying screens.
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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Sample Questions
Q1) With film-screen imaging,an abdomen image is done using 60 kVp and 30 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) 51 kVp and 60 mAs
B) 51 kVp and 30 mAs
C) 69 kVp and 30 mAs
D) 69 kVp and 15 mAs
Q2) The distance between the object being radiographed and the IR is the:
A) magnification factor.
B) SID.
C) OID.
D) SOD.
Q3) A quality radiograph is done using 10 mAs,70 kVp,and a 12:1 ratio grid.How much mAs is needed to produce an image with the same exposure to the IR when the grid is removed?
A) 2 mAs
B) 5 mAs
C) 15 mAs
D) 50 mAs
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Page 8
Chapter 7: Scatter Control
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Sample Questions
Q1) 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.
Q2) Significant collimation requires an increase of _____________ of the mAs.
A) 0%
B) 1% to 5%
C) 10% to 20%
D) 30% to 50%
Q3) 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.
Q4) As beam restriction increases,field size and patient dose _________________.
A) increases
B) decreases
C) does not change
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Chapter 8: Exposure Technique Selection
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Sample Questions
Q1) What is the appropriate setting for backup time/mAs?
A) 50% of the expected mAs
B) 100% of the expected mAs
C) 150% of the expected mAs
D) 400% of the expected mAs
Q2) Accurate patient measurement is most critical for the:
A) variable kVp-fixed mAs technique chart design.
B) variable kVp-variable mAs technique chart design.
C) fixed kVp-variable mAs technique chart design.
D) fixed kVp-fixed mAs technique chart design.
Q3) 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
Q4) When doing a tabletop forearm study with CR,you should:
A) use AEC.
B) set manual technique.
C) A and B.
Page 10
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Chapter 9: Image Evaluation
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Sample Questions
Q1) The amount of overall blackness on the processed image is the:
A) density.
B) contrast.
C) SID.
D) brightness.
Q2) A film-screen image with increased density may be due to:
1)Increased OID
2)Decreased SID
3)Increased film-screen speed
A) 1 and 2 only.
B) 1 and 3 only.
C) 2 and 3 only.
D) 1, 2, and 3.
Q3) The visibility of anatomic structures in a radiographic image is determined by:
A) spatial resolution and image contrast.
B) brightness/density and image contrast.
C) spatial resolution and brightness/density.
D) all of the above.
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11
Chapter 10: Dynamic Imaging: Fluoroscopy
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Sample Questions
Q1) The conversion factor is a(n)___________ term for brightness gain and is typically about __________ of the brightness gain value.
A) older; 1%
B) older; 10%
C) newer; 1%
D) newer; 10%
Q2) The fiber-optic bundle or optical lens system is used to:
A) deliver the image from the camera to the television monitor.
B) record the fluoroscopic image.
C) link the output phosphor and camera or CCD.
D) none of the above.
Q3) The newest fluoroscopy systems use a flat-panel detector:
A) to display the spot images during fluoroscopy.
B) to record the overhead images following fluoroscopy.
C) in place of the image intensifier.
D) in addition to the image intensifier.
Q4) The ABC can be slow in responding,seen as a brief delay in the brightness adjustment.
A)True
B)False
Page 12
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