A left lateral rectum projection demonstrates the right femoral head anterior to the left femoral head. Such a projection
1. also demonstrates the right femoral head superior to the left femoral head.
2. is obtained by positioning the posterior pelvic wings perpendicular to the IR.
3. demonstrates a magnified right femoral head.
4. is made optimal by rotating the right hip posteriorly.
a. 1 and 3 only
b. 3 only
c. 2 and 4 only
d. 3 and 4 only
Question 2
A PA oblique large intestine projection (RAO position) with accurate positioning demonstrates
1. the rectosigmoid segments without superimposition.
2. a narrowed right iliac ala.
3. the entire large intestine.
4. decreased superimposition (when compared with a PA projection) of the right colic flexure limbs.
a. 2 and 3 only
b. 1 and 4 only
c. 1, 2, and 3 only
d. 1, 2, 3, and 4
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