Which description matches the prone position?

• A. Lying on the back
• B. Lying on the abdomen
• C. Semi-sitting
• D. Standing

Answer: (B)

Prone position means lying face down, with the chest and abdomen toward the surface and the head turned to one side so you can breathe. This is different from lying on the back (facing upward), a semi-sitting posture (torso elevated but not upright), or standing upright. The description that fits prone is lying on the abdomen, since that orientation places the body stomach-down.