When the hand is pronated with the palm facing downward, which position does the thumb assume?

When the hand is pronated with the palm facing downward, which position does the thumb assume?

• A. AP
• B. Oblique
• C. Lateral
• D. PA

Answer: (B)

When the hand is pronated with the palm facing downward, the thumb sits at an angle relative to the plane of the hand rather than pointing straight laterally. This outward rotation from a flat PA/AP view places the thumb in an oblique position. In radiographic practice, an oblique hand view is created by rotating the hand about 45 degrees so the palm isn’t fully facing the receptor and the digits aren’t in a strict lateral line, which naturally positions the thumb obliquely and helps visualize the joints more clearly.

When the hand is pronated with the palm facing downward, the thumb sits at an angle relative to the plane of the hand rather than pointing straight laterally. This outward rotation from a flat PA/AP view places the thumb in an oblique position. In radiographic practice, an oblique hand view is created by rotating the hand about 45 degrees so the palm isn’t fully facing the receptor and the digits aren’t in a strict lateral line, which naturally positions the thumb obliquely and helps visualize the joints more clearly.