超星 - 专业英语自测

单选题

The following are good reasons of taking a CXR erect except ______.

A. To allow the diaphragm to gravitate down easily.
B. To better demonstrate pleural effusions or pulmonary edema.
C. To maneuver the patients easily.
D. To allow the patients to take in a deeper breath.

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单选题

Which positioning would be performed for a patient with fluid on the left side?

A. left lateral decubitus
B. erect PA
C. supine AP
D. right lateral decubitus

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单选题

What is the purpose of the 6 feet SID used for chest radiography?

Allows more room for accurate patient positioning.
B. Reduces patient dose.
C. Minimizes magnification of the heart shadow.
D. Minimizes demonstration of the scapula in the lungs.

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单选题

For a left lateral chest projection, which following description is NOT correct?

A. SID is set at 40 inches.
B. The right ribs are usually larger and projected posterior to the left ribs.
C. Shoulders and posterior ribs are aligned perpendicular to the cassette.
D. Both anterior and posterior left hemi-diaphragm remains visible.

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单选题

nullA PA chest projection with accurate positioning demonstrates the followings except______.

A. over 8 posterior ribs above the hemi-diaphragm.
B. equal posterior rib length on both sides of the chest.structures like heart.
C. the right hemi-diaphragm lower than the left.
D. least magnification of anterior structures like heart.

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单选题