ARRT Spine and Pelvis Procedures 4

Question 1

For the AP projection of the coccyx, the CR is directed:

Accepted Answer

10 degrees caudad

Answer

The AP coccyx requires a 10-degree caudad CR angulation to project the coccyx free of the pubic symphysis.

Question 2

The Fuchs method is used to demonstrate which structure?

Accepted Answer

Dens (odontoid process) in extension

Answer

The Fuchs method is an AP axial projection with the neck hyperextended, projecting the dens through the foramen magnum.

Question 3

A patient with suspected cervical spine trauma is brought in on a backboard. The first radiograph obtained should be:

Accepted Answer

Cross-table lateral projection

Answer

The cross-table lateral projection is the first and most critical view in trauma because it can be obtained without moving the patient and demonstrates alignment, fractures, and foreign bodies.

Question 4

To reduce the gonadal dose during AP spine radiography on a female patient, the technologist should:

Accepted Answer

Collimate tightly and position shield inferior to the area of interest

Answer

Tight collimation and proper contact shielding placed just inferior to the primary beam field reduces scatter and primary beam dose to the ovaries.

Question 5

The swimmers lateral (Twining method) is used to demonstrate which region?

Accepted Answer

C7-T1 junction

Answer

The Twining (swimmers) lateral is specifically designed to demonstrate the C7-T1 cervicothoracic junction when it is obscured by the shoulders on a standard lateral view.

ARRT - American Registry of Radiologic Technologists Practice Test

ARRT - American Registry of Radiologic Technologists Practice Test

ARRT Spine and Pelvis Procedures 4