Where is the central ray for the lateral skull projection directed?
level of the EAM
midway between the outer canthus and EAM
superior to the level of the EAM
posterior to the EAM
superior to the level of the EAM
Rationale: The central ray is directed 1-2 inches superior to the EAM (external auditory meatus) in order to include the vertex of the skull. The lateral skull must include the frontal bone, vertex, and occipital bone.
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