At What Level Should the Central Ray (CR) Be Placed

question 89

Multiple Choice

At what level should the central ray (CR) be placed for a left lateral decubitus projection of the abdomen?

• A)Iliac crest
• B)2 inches (5 cm) above iliac crest
• C)ASIS
• D)Umbilicus

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Definitions:

Myasthenia Gravis

Myasthenia Gravis is an autoimmune disorder characterized by weakness and rapid fatigue of any of the muscles under voluntary control, caused by a breakdown in communication between nerves and muscles.

Autoimmune Disease

Autoimmune disease occurs when the body's immune system mistakenly attacks healthy cells, leading to various conditions characterized by inflammation and tissue damage.

Type Of Cancer

Refers to the various classifications of cancer based on the cell type and origin site, influencing treatment options and prognosis.

Myasthenia Gravis

An autoimmune disorder characterized by weakness and rapid fatigue of any of the muscles under voluntary control.