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RADT425
Chapters 1
| Question | Answer |
|---|---|
| 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 |