For an externally rotated AP oblique knee projection, the
1)leg is externally rotated until an imaginary line connecting the femoral epicondyles is at a 45-degree angle with the IR.
2)leg is internally rotated until an imaginary line connecting the femoral epicondyles is at a 45-degree angle with the IR.
3)central ray is aligned parallel with the tibia plateau.
4)central ray is centered at a level 0.75 inch (2 cm) distal to the medial femoral epicondyles.
A) 1 and 4 only
B) 1 and 3 only
C) 2 and 4 only
D) 1, 3, and 4 only

Question

Quizplus · Accepted Answer

For an externally rotated AP oblique knee projection, the
1) leg is externally rotated until an imaginary line connecting the femoral epicondyles is at a 45-degree angle with the IR.
2) leg is internally rotated until an imaginary line connecting the femoral epicondyles is at a 45-degree angle with the IR.
3) central ray is aligned parallel with the tibia plateau.
4) central ray is centered at a level 0.75 inch (2 cm) distal to the medial femoral epicondyles.

For an Externally Rotated AP Oblique Knee Projection, the