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Chapters 1

What combination of the positioning terms is used to describe the portion of the scapula that is positioned closest to the patient's front and head? anterosuperior
If the IR was placed against the lateral aspect of the patient's leg and the CR was centered to the medial aspect, what projection of the leg was taken? mediolateral
When an AP/PA projection or AP/PA oblique projection of the torso is accurately displayed, the patient's right side is on the viewer's _________side. left
True or False, when using the post-processing contrast mask feature, only the unexposed areas are masked. true
True or False, a projection that has had the contrast mask added and was saved to PACS can be unmasked. false
True or False, The smallest possible IR cassette is chosen when using the computer radiography digital systems to produce a projection with maximum spatial resolution. true
How close should the collimation borders come to the VOI for maximum benefit? 0.5-1 inch
Good collimation practices (increase/decrease) patient radiation dosage and (increase/decrease) the visibility of recorded details and (increases/decreases) histogram analysis errors. decrease, increase, decreases
To minimize shape distortion on a projection, keep the part positioned (parallel/ perpendicular) to the IR and the CR (parallel/ perpendicular) to both the part and IR. parallel, perpendicular
A (large/small) focal spot size is used for fine detail demonstration because a detail that is (larger/ smaller) than the focal spot size used to produce the image will not be demonstrated. small, smaller
A (longer/shorter) SID and and (longer/shorter) OID will produce the sharpest recorded details on a projection. longer, shorter
When a patient is extremely short of breath due to asthma and unable to hold it, is this voluntary or involuntary motion? involuntary
After being in an accident, the patient being images is unable to stop shaking. Is this involuntary or voluntary motion? involuntary
DR system A can demonstrate 5 lp/mm and DR system B can demonstrate 10 lp/mm. Which system demonstrates the greatest spatial resolution? DR system B
True or False, When obtaining a projection using a DR system, greater spatial resolution is obtained when the technologist collimates to a smaller area. false
Created by: ashollings