An acanthioparietal facial bone projection (Waters method) with poor positioning demonstrates the petrous ridges too far inferior to the maxillary sinuses. How could the positioning setup be adjusted for an optimal projection to be obtained?
1. Depress the patient's chin.
2. Align the central ray parallel with the MML.
3. Align the MML perpendicular to the IR.
4. Adjust the central ray angulation caudally.
a. 1 and 3 only
b. 2 and 3 only
c. 1 and 4 only
d. 1, 2, 3, and 4
D
Health Professions
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During active disease states, circulating autoantibodies directed toward a protein known as desmoglein 3 in skin and mucosa epithelium are seen in which of the following?
a. Aphthous ulcers b. Behçet's syndrome c. Erythema multiforme d. Pemphigus vulgaris e. None of the above
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Code for the removal of a cast by a person who was not the one who applied
A) 29799-29800 B) 29700-29750 C) 29000-29584 D) 29600-29699
Health Professions