Question

30 multiple choice 1 point which evaluation criterion pertains to the pa projection image of the chest? the ribs should appear distorted. the clavicles should lie superior to the apices. the scapulae should be projected outside the lung fields. the ribs posterior to the vertebral column should be superimposed.

Explanation:

In a PA (postero - anterior) projection image of the chest, an ideal image has the scapulae projected outside the lung fields to avoid obscuring the lung parenchyma. Ribs should not be distorted. Clavicles should be symmetrically positioned and not necessarily just superior to the apices. The ribs posterior to the vertebral column are not expected to be superimposed in a normal PA chest projection.

Answer:

The scapulae should be projected outside the lung fields.