An AP Cranial Projection with Poor Positioning Demonstrates the Petrous

question 39

Multiple Choice

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

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