A PA hand projection obtained with the hand flexed demonstrates
1)foreshortened phalanges.
2)the thumb in a lateral projection.
3)closed IP joint spaces.
4)foreshortened metacarpals.
A) 1 and 3 only
B) 2 and 4 only
C) 1, 3, and 4 only
D) 1, 2, 3, and 4

Question

Quizplus · Accepted Answer

When the hand is flexed during a PA hand projection, it results in foreshortening of both the phalanges and metacarpals due to the angle of the X-ray beam relative to the bones. The thumb, not being in its natural position, will appear in a lateral projection. Additionally, the interphalangeal (IP) joint spaces may appear closed due to the overlapping of the phalanges.

A PA Hand Projection Obtained with the Hand Flexed Demonstrates