What Is the Degree of Central Ray Angulation That Should

Multiple Choice

What is the degree of central ray angulation that should be used for an ulnar-deviated PA axial (scaphoid) wrist projection being obtained to demonstrate a proximal scaphoid fracture?

A) Use a 10-degree angle if the first metacarpal and ulna are aligned.
B) Use a 25-degree angle if the first metacarpal and ulna are not aligned.
C) Use a 15-degree angle if the first metacarpal and ulna are aligned.
D) Use a 20-degree angle if the first metacarpal and ulna are not aligned.