An Optimal AP Elbow Projection Is Obtained When

Multiple Choice

An optimal AP elbow projection is obtained when

A) an imaginary line connecting the humeral epicondyles is aligned perpendicular with the IR.
B) the radial tuberosity is demonstrated in profile laterally.
C) the radial head articulating surface is demonstrated.
D) the radial head superimposes the lateral aspect of the proximal ulna by 0.25 inch (0.6 cm) .