Author Question: For an AP chest projection obtained with a mobile x-ray unit, 1. the IR is positioned parallel ... (Read 19 times)

krzymel · **on:** Jul 17, 2018

For an AP chest projection obtained with a mobile x-ray unit,

1. the IR is positioned parallel with the midcoronal plane.
2. the image is obtained without the use of a grid.
3. the manubrium is superimposed over the fourth thoracic vertebra.
4. 10 or 11 posterior ribs are demonstrated above the diaphragm.
a. 1 and 2 only
b. 1, 2, and 3 only
c. 3 and 4 only
d. 1, 2, 3, and 4

Question 2

Air-fluid levels on an AP chest projection

1. demonstrate an increase in density where the fluid is present.
2. are formed when air and fluid separate.
3. are precisely demonstrated when the patient is in a partially upright position.
4. are precisely demonstrated when the central ray is horizontal.
a. 1 and 3 only
b. 1, 2, and 4 only
c. 2 and 4 only
d. 2, 3, and 4 only