What occurs with contrast and density of a radiograph when the setting of mAs increases?
A. Contrast decreases and density decreases.
B. Contrast remains unchanged and density decreases.
Contrast remains unchanged and density increases.
D. Contrast increases and density increases.
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Black areas that are produced on a radiograph represents_____.
A. tissues of high density
B. tissues of high atomic number
C. tissues causing less attenuation of the X-ray beam
D. tissues absorbing more x-rays beam
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.
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
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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