A PA cranial projection with poor positioning demonstrates the petrous ridges too superior to the supraorbital margins. How was the patient positioned for such a projection to be obtained?
1)The patient's chin was inadequately tucked.
2)The OML was not positioned perpendicular to the IR.
3)The patient's face was rotated toward the right side.
4)The patient's head was tilted.
A) 1 and 2 only
B) 2 only
C) 3 only
D) 2 and 4 only

Question

Quizplus · Accepted Answer

When the petrous ridges appear too superior to the supraorbital margins in a PA cranial projection, it indicates that the patient's chin was not tucked enough (1), and the orbitomeatal line (OML) was not perpendicular to the image receptor (IR) (2). Proper chin tuck and correct OML orientation are crucial for accurate positioning in cranial radiography.

A PA Cranial Projection with Poor Positioning Demonstrates the Petrous