An AP cranial projection with poor positioning demonstrates the petrous ridges inferior to the supraorbital margins. How could the positioning setup be adjusted for an optimal projection to be obtained?
1. Rotate the patient's face toward the left side.
2. Angle the central ray caudally.
3. Position the OML perpendicular to the IR.
4. Tuck the patient's chin more.
a. 1 only
b. 2 and 3 only
c. 3 and 4 only
d. 2, 3, and 4 only
Question 2
For a PA axial cranial projection (Caldwell method), the
1. midsagittal plane is aligned perpendicular to the IR.
2. central ray is angled 15 degrees caudally.
3. OML is aligned perpendicular to the IR.
4. central ray is centered to the nasion.
a. 1 and 3 only
b. 2 and 4 only
c. 2, 3, and 4 only
d. 1, 2, 3, and 4
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