A decubitus position is one where the patient is in

A decubitus position is one where the patient is in

• A. The left lateral position with arms extended
• B. Any recumbent position with a horizontal x-ray beam
• C. A semi-erect position with a horizontal x-ray beam
• D. A leaning back position seated on a chair

Answer: (B)

Decubitus in radiography means the patient is lying down (recumbent) with the x-ray beam directed horizontally across the body. This horizontal beam, used while the patient is in a lying position, allows air-fluid levels or free air to be visualized that might not be seen if the patient were upright. The description that best matches this definition is any recumbent position with a horizontal x-ray beam. The other options describe upright or seated positions, or don’t specify a horizontal beam, so they don’t define decubitus.

Decubitus in radiography means the patient is lying down (recumbent) with the x-ray beam directed horizontally across the body. This horizontal beam, used while the patient is in a lying position, allows air-fluid levels or free air to be visualized that might not be seen if the patient were upright. The description that best matches this definition is any recumbent position with a horizontal x-ray beam. The other options describe upright or seated positions, or don’t specify a horizontal beam, so they don’t define decubitus.