For a lateral knee projection,
1)an imaginary line connecting the femoral epicondyles is aligned parallel with the IR.
2)a patient with long femora and a narrow pelvis does not require an angled central ray.
3)a grid is used if the knee measures over 10 cm.
4)the central ray is centered 1 inch (2.5 cm) distal to the medial femoral epicondyles.
A) 1 and 2 only
B) 2 and 4 only
C) 2, 3, and 4 only
D) 1, 2, 3, and 4

Question

Quizplus · Accepted Answer

A grid is used if the knee measures over 10 cm, and the central ray is centered 1 inch distal to the medial femoral epicondyles. A patient with long femora and a narrow pelvis may not require an angled central ray.

For a Lateral Knee Projection