ARRT Registry Review Covering Image Production and Evaluation
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| What type of relationship do recorded detail and magnification have? | Inverse relationship (Lange Prep Pg. 301)
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| What percentage of change in mAs is needed for there to be a perceptible change in density? | 30% (Lange Prep Pg. 318)
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| Are pneumonia and ascites additive or destructive pathologic conditions? | Additive (Lange Prep Pg. 333)
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| What type of kV is required to produce short-scale contrast? | Low kv (high contrast) (Lange Prep Pg. 340)
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| What will the image result be if the center detector on AEC is used for a PA chest x-ray? | The image will be overexposed (Lange Prep Pg. 350)
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| How much should the kV be changed in a variable technique chart when the part thickness increases by 1 cm? | The kV should be increased by 2 for every 1 cm increase in part thickness (Lange Prep Pg. 352)
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| How are pixel size and resolution related? | Inversely (Lange Prep Pg. 356)
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| What are used to obtain the pixel data from PSP imaging plates? | Lasers (Lange Prep Pg. 359)
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| What materials are used to compose a thin-film transistor? | Glass with amorphous selenium (Lange Prep Pg. 364)
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| What happens to noise when SNR decreases? | Noise increases (Lange Prep Pg. 366)
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| Which system acquires, displays, and archives images? | PACS (Lange Prep Pg. 366)
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| True or False. Using a small focal spot improved recorded detail. | True (Lange Prep Pg. 308)
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| What are the two best methods to reduce voluntary motion? | Good communication and suspended respiration (Lange Prep Pg. 310)
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| Are intensifying screens used in digital imaging or screen-film imaging? | Screen-film imaging only (Lange Prep Pg. 321)
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| Which type of grid uses angled lead strips? | Focused grid (Lange Prep Pg. 324)
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| Which type of grid error is characterized by density loss at the periphery of the image? | Off-focus errors (Lange Prep Pg. 325)
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| What should be the humidity when storing film? | 40-60% (Lange Prep Pg. 381)
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| What will happen to film if it is stored to close to x-ray rooms or radionuclides and is exposed to ionizing radiation? | The film can be fogged (Lange Prep Pg. 381)
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| Chemical fog and guide show marks are what type of artifact? | Processing (Lange Prep Pg. 383)
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| Which film processing step removes processing chemicals and permits archival quality? | Wash (Lange Prep Pg. 386)
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| What temperature should the developer be maintained at? | 92-95 degrees Fahrenheit (Lange Prep Pg. 387)
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| How long can a PSP layer store its latent image before fading occurs? | 8 hours (Lange Prep Pg. 391)
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| True or False. Windowing does not affect the LUT. | False (Lange Prep Pg. 396)
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| Which type of windowing changes the image brightness? | Window level (Lange Prep Pg. 396)
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| How much underexposure and overexposure can CR/DR compensate for? | 80% underexposure and 500% overexposure (Lange Prep Pg. 367)
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| What does APR stand for and what is the purpose? | Anatomically programmed radiography - technologist selects anatomic part and projection, simultaneously selecting a processing algorithm (Lange Prep Pg. 408)
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| Are slow or fast screens used for extremities? | Slow screens (Lange Prep Pg. 407)
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| What will occur if two linear grids are superimposed? | Moiré effect (Lange Prep Pg. 413)
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| What kind of artifact will dust cause on a PSP during processing? | Striking artifact (Lange Prep Pg. 424)
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| What is the function of contrast? | Make details visible (Lange Prep Pg. 339)
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