A poorly positioned AP axial cranial projection (Caldwell method) demonstrates the petrous ridges inferior to the infraorbital margins. How could the positioning setup be adjusted to obtain an optimal projection?
1. Rotate the patient's face toward the left side.
2. Adjust the central ray angulation caudally.
3. Tuck the patient's chin until the OML is perpendicular to the IR.
4. Elevate the patient's chin until the OML is perpendicular to the IR.
a. 1 only
b. 2 and 3 only
c. 3 and 4 only
d. 2, 3, and 4 only
Question 2
An AP cranial projection can be distinguished from a PA cranial projection because it demon-strates
1. less orbital magnification.
2. the internal auditory canals horizontally through the orbits.
3. less distance from the lateral orbital margins to the lateral cranial cortices.
4. the anterior clinoids and dorsum sellae superior to the ethmoid sinuses.
a. 1 only
b. 1 and 3 only
c. 3 only
d. 2, 3, and 4 only
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The client is positioned for the examination
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