A lateral thoracic projection with poor positioning demonstrates closed eighth through twelfth intervertebral disk spaces. How was the patient mispositioned for such a projection to be obtained?
1)The central ray was not aligned perpendicular to the thoracic vertebrae.
2)The vertebral column was not aligned parallel with the imaging table.
3)A radiolucent sponge was not accurately positioned between the lateral surface of the patient and the imaging table.
4)The hips and knees were extended.
A) 1 and 2 only
B) 2 and 3 only
C) 1, 2, and 3 only
D) 4 only

Question

Quizplus · Accepted Answer

To obtain a lateral thoracic projection, it is important to align the vertebral column parallel with the imaging table and ensure that a radiolucent sponge is accurately positioned between the lateral surface of the patient and the imaging table. In addition, the central ray should be aligned perpendicular to the thoracic vertebrae. Failure to align the vertebral column parallel to the imaging table and accurately position the sponge can result in closed intervertebral disk spaces.

A Lateral Thoracic Projection with Poor Positioning Demonstrates Closed Eighth