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A Radiograph of a Posteroanterior (PA) Axial Projection (Caldwell Method)

Question 76

Multiple Choice

A radiograph of a posteroanterior (PA) axial projection (Caldwell method) of the cranium reveals that the petrous ridges are located at the level of the lower one-third of the orbits.The technologist performed this projection with the CR angled 15° caudad to the orbitomeatal line (OML) .How must positioning be altered if a repeat exposure is performed?


A) Increase the extension of the skull.
B) Increase the flexion of the skull.
C) Increase the CR angulation.
D) None of the above; positioning was correct.

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