When the lumbar spine Cannot be adjusted so it is horizontal for the lateral projection the central ray is?

Question Answer
If the lumbar spine cannot be adjusted so it is horizontal for the lateral projection, the CR should be angled how many degrees and in which direction: 5 for men, 8 for women caudad

When the spine Cannot be placed in a true horizontal position for the L5-S1 lateral projection the CR must be angled?

When the spine cannot be placed in a true horizontal position for the L5-S1 lateral projection, the central ray must be angled: A. 5 degrees men, 8 degrees women, caudad.

Where is the central ray directed for an AP projection of the lumbar spine?

Cards

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Term Which of the following describes the central ray centering point for the L5-S1 lateral projection? Definition 2 inches posterior to the ASIS and 1 1/2 inches below the iliac crests
Term Where is the central ray directed for an AP lumbosacral spine? Definition iliac crests or L4

Where does the central ray enter for a projection of the lateral coccyx?

sacrum and coccyx

Question Answer
Where does the central ray enter for the AP Axial projection of the coccyx? 2 inches superior to the pubis symphsis
Where does the central ray enter for the lateral sacrum? 3 1/2 inches posterior to the ASIS
What is the central ray angle for the AP Axial coccyx? 10 degrees caudad

Which central ray angle and direction is recommended for an AP projection of the sacrum?

The AP sacrum projection is part of the sacroiliac series that includes an oblique projection (PA/AP) of the joint on both sides. Although usually taken as an AP projection it can also be taken PA with a reverse caudal central ray angulation of 30° to 35° when patients cannot assume supine position 1.

What anatomy is best demonstrated on the lateral lumbar spine?

XR 105 Midterm

Question Answer
what specific spine anatomy is demonstrated on a lateral projection of the L spine? the intervertebral foramina
which supplemental projection of the L spine demonstrates the zygapophyseal joints CLOSEST to the film? AP oblique

At what level is the cassette centered for a lateral lumbosacral spine?

When using a 14 x 17 inch (35 x 43 cm) cassette for a lumbosacral spine examination, center it at the level of the iliac crest (L4-L5).

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What projection of the lumbar spine best demonstrates the Zygapophyseal joints?

Cervical, Thoracic and Lumbar Spine Joints and Foramina Positioning

Question Answer
The lumbar zygapophyseal joints are best visualized in what radiographic position? 45° oblique
What is best demonstrated on a lateral projection of the L-spine? lumbar intervertebral foramina

Which projection of the lumbar spine best demonstrates the intervertebral foramen?

Cards

Term Which two vertebral curvatures are anteriorly concave? Definition Thoracic and sacral(pelvic)
Term Which projection of the lumbar vertebral column best demonstrates intervertebral foramina? Definition Lateral projection

Which projection of the lumbar spine displays the vertebrae in the form of a Scottie dog?

VERTEBRAL COLUMN

Question Answer
Which projection of the lumbar spine displays the vertebrae in the form of a Scottie dog? AP and PA oblique
What is the central ray angulation for an AP axial protection of the lumbosacral junction? 30-35 degrees cephalic
The central ray angular ion for a PA sacrum is ? 15 degrees caudal

What xray to order for tailbone?

The lateral view of the coccyx is typically the most important view when getting x-rays (radiographs) for a patient with tailbone pain. The “Lateral” view is essentially looking at the coccyx from the side (side view).

What Cr angle should be used for a lateral sacrum coccyx projection?

The CR is centered 1.5 inches (3-4 cm) inferior to the iliac crest and 2 inches (5 cm) posterior to the ASIS. a. If the waist is not supported, the CR must be angled 5-8 degrees caudad.

Where is the central ray centered for an AP projection of the sacrum?

Cards

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Term How many vertebrae are there in the sacrum? Definition 5
Term What is the central-ray angle for an AP projection of the hip? Definition Perpendicular
Term Where is the IR centered for an AP pelvis? Definition Midway between ASIS and pubic symphysis

How much central ray angulation is required for an AP projection of the sacrum for a typical male patient?

Lumbar Spine, Sacrum & Coccyx

Question Answer
How much central ray angulation is required for an AP projection of the sacrum for a typical male patient? 15 degrees cephalad
Where is the central ray positioned for an AP projection of the coccyx? 2″ superior to symphysis pubis
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