The upper incisors are superimposed over the dens and the posterior occiput's inferior edge is demonstrated about 1 inch (2.5 cm) superior to the dens on an AP atlas and axis projection
How could the positioning setup be adjusted for an optimal projection to be obtained?
1. Align the acanthiomeatal line perpendicular to the IR.
2. Elevate the patient's chin 0.5 inch (2 cm).
3. Adjust the central ray 5 degrees caudally.
4. Move the central ray and IR 1 inch (2.5 cm) superiorly.
a. 1 and 2 only
b. 2 and 3 only
c. 1, 2, and 3 only
d. 4 only
A
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Which of the following is a filing method used to identify and separate items to be filed in small subunits?
a. File folder b. Identification label c. Out sheets d. Indexing units e. Cross reference
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