A Radiograph of an AP Projection of the Lumbar Spine

question 54

Multiple Choice

A radiograph of an AP projection of the lumbar spine on an average-size patient reveals that the psoas major muscles and transverse processes are not visible.The following analog factors were used for this projection: automatic exposure control (AEC) with center ionization chamber, 95 kV, 40-inch (102-cm) SID, grid, and 14- × 17-inch (35- × 43-cm) image receptor.Which of the following modifications will be most effective in demonstrating these structures?

• A)Decrease the kV.
• B)Activate all three ionization chambers.
• C)Decrease the mAs.
• D)Increase the kV.

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Definitions:

Changing Position

In healthcare, this refers to the practice of moving or repositioning a patient to promote circulation and prevent pressure ulcers.

Hypercalcemia

Greater-than-normal amount of calcium in the blood.

Renal Calculi

Calcium stones in the renal pelvis.

Pressure Ulcers

A localized injury to the skin and/or underlying tissue, usually over a bony prominence, as a result of pressure, or pressure in combination with shear.