A less than optimal AP elbow projection demonstrating the ulna without radial head superimposition
A) was obtained with the elbow in external rotation.
B) will also demonstrate the radial head articulating surface.
C) was obtained with the hand pronated.
D) was obtained with the elbow in internal rotation.

Question

Quizplus · Accepted Answer

When the elbow is in external rotation, the ulna and radius are not superimposed, leading to a less than optimal AP elbow projection.

A Less Than Optimal AP Elbow Projection Demonstrating the Ulna