A left lateral chest projection obtained with the patient's left side rotated anteriorly demonstrates the
1)anterior and posterior ribs with more than 0.5 inch (1 cm) of superimposition.
2)heart shadow entirely posterior to the sternum.
3)right hemidiaphragm inferior to the left hemidiaphragm.
4)humeral soft tissue superimposed over the anterior lung apices.
A) 1 only
B) 1 and 2 only
C) 3 and 4 only
D) 1, 2, and 4 only

Question

Quizplus · Accepted Answer

A left lateral chest projection obtained with the patient's left side rotated anteriorly will demonstrate the anterior and posterior ribs with more than 0.5 inches (1 cm) of superimposition. The heart shadow will not be entirely posterior to the sternum and the right hemidiaphragm will not be inferior to the left hemidiaphragm, as these would be seen on a PA or AP chest projection. Also, humeral soft tissue will not be superimposed over the anterior lung apices, as this would be seen on an AP chest projection. Therefore, the correct choice is 1 only.

A Left Lateral Chest Projection Obtained with the Patient's Left