When Imaging Long Bones, Which of the Following Is (Are)

Multiple Choice

When imaging long bones, which of the following is (are) correct statements?
1) Choose a large enough IR so that one or both joints are included on the projection.
2) Extend the collimation field so it extends 1 to 2 inches (2.5 cm to 5 cm) beyond the joints spaces as required.
3) Histogram errors may occur if the system algorithm does not recognize a diagonal exposure field.
4) Align the long bone parallel to the IR to prevent a histogram analysis error.

A) 1 only
B) 4 only
C) 1, 2, and 4 only
D) 1, 2, 3, and 4