Author Question: A left PA 60-degree oblique chest projection (LAO position) 1. demonstrates the heart shadow to ... (Read 24 times)

cabate · **on:** Jul 17, 2018

A left PA 60-degree oblique chest projection (LAO position)

1. demonstrates the heart shadow to the right of the vertebral column.
2. is obtained to evaluate the size and configuration of the heart shadow.
3. best demonstrates the left lung.
4. demonstrates three times as much lung field on one side of the vertebral column as on the op-posite side.
a. 1 and 2 only
b. 1 and 3 only
c. 1, 2, and 4 only
d. 2 and 4 only

Question 2

For a PA oblique chest projection,

1. the patient is rotated until the midsagittal plane is aligned 45 degrees with the IR.
2. there is twice as much lung field demonstrated on one side of the vertebral column as on the opposite side.
3. 10 or 11 posterior ribs are demonstrated above the hemidiaphragm.
4. the apices, costophrenic angles, and lateral chest walls are included on the image.
a. 1 and 4 only
b. 2 and 3 only
c. 2, 3, and 4 only
d. 1, 2, 3, and 4