Where does the central ray enter the patient for an AP axial projection of the sacrum?
A) 2 inches at the pubic symphysis
B) 1 inch inferior to the symphysis
C) 1 inch at the pubic symphysis
D) 2 inches superior to the pubic symphysis

Question

Quizplus · Accepted Answer

For an AP axial projection of the sacrum, the central ray is directed 15 degrees cephalad and enters 2 inches superior to the pubic symphysis.

Where Does the Central Ray Enter the Patient for an AP