An AP Atlas and Axis Projection with Poor Positioning Demonstrates

question 33

Multiple Choice

An AP atlas and axis projection with poor positioning demonstrates the dens superimposed over the posterior occiput. The upper incisors are demonstrated about 3 inches (7.5 cm) superior to the posterior occiput's inferior edge. How could the positioning setup be adjusted for an optimal projection to be obtained?
1) Adjust the central ray 15 degrees caudally.
2) Tuck the patient's chin 1.5 inches (3.75 cm) .
3) Align the acanthiomeatal line perpendicular to the imaging table.
4) Move the central ray and IR 3 inches (7.5 cm) inferiorly.

• A) 1 and 2 only
• B) 2 and 3 only
• C) 1, 2, and 3 only
• D) 3 and 4 only

---

Definitions:

IV Push

A method of administering medication directly into the venous circulation via a syringe to deliver drugs quickly.

DE-style Equations

Equations that involve rates of change and initial conditions, significant in dynamic systems' analysis.

Injection

A method of delivering drugs or other substances into the body using a needle and syringe, typically intravenously, intramuscularly, or subcutaneously.

Lasix

A diuretic medication used to treat fluid retention and swelling caused by heart failure, liver disease, and kidney disease.