What position is recommended for paracentesis?

• A. High Fowler's
• B. Supine
• C. Prone
• D. Lateral decubitus

Answer: (A)

Positioning for paracentesis aims to give reliable access to the peritoneal cavity while minimizing the risk of injuring underlying structures. Sitting upright in High Fowler's position—trunk elevated with the patient leaning slightly forward—best achieves this. The upright posture helps bring the abdominal wall into a favorable, taut position, makes landmarks easier to feel, and allows gravity to guide fluid toward the lower abdomen, creating a stable window for needle entry in the lower quadrant away from the liver and other organs. Other positions make access more awkward or increase the risk of puncturing bowel or other structures, so they’re not preferred for this procedure.