What is paracentesis?

Paracentesis refers to the medical procedure that involves the aspiration of fluid from a body cavity, usually the abdominal cavity. This procedure is typically performed to diagnose or treat conditions such as ascites, where excess fluid accumulates in the abdomen. By inserting a needle through the abdominal wall and into the cavity, healthcare providers can withdraw this fluid for analysis or relief of pressure caused by the fluid buildup.

In contrast, the other options pertain to different medical procedures or techniques: measuring glucose levels involves blood tests, skin grafting techniques are used for wound healing or reconstruction, and surgical procedures for heart repair encompass a range of techniques aimed at correcting heart defects or damage. Thus, the correct choice accurately describes the purpose and action of paracentesis.