A Lateral Lumbar Projection Demonstrates Closed L4-L5 and L5-S1 Intervertebral

question 24

Multiple Choice

A lateral lumbar projection demonstrates closed L4-L5 and L5-S1 intervertebral disk spaces. How should the positioning setup be adjusted for an optimal projection to be obtained?
1) Angle the central ray until it parallels the interiliac line.
2) Rotate the patient into a true lateral position.
3) Align the central ray perpendicular to the L5-S1 vertebral column area.
4) Align the vertebral column parallel with the imaging table.

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

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Definitions:

RNA

Ribonucleic acid, a nucleic acid that plays crucial roles in coding, decoding, regulation, and expression of genes.

Enzymatic RNAs

RNA molecules that are capable of catalyzing chemical reactions, playing roles similar to enzymes.

Informational Molecule

A molecule that carries or transmits biological information, essential for processes such as DNA synthesis and protein production.

RNA Molecules

Molecules composed of ribonucleic acid (RNA) that play various roles in coding, decoding, regulation, and expression of genes.