Which procedure is used to drain fluid from the abdominal cavity?

The procedure used to drain fluid from the abdominal cavity is paracentesis. This minimally invasive procedure involves using a needle or catheter to remove excess fluid that has accumulated in the peritoneal cavity, which can happen due to conditions such as ascites, infections, or malignancies.

During paracentesis, the doctor inserts a needle through the abdominal wall into the peritoneal space to withdraw fluid, which can then be analyzed for diagnostic purposes or relieve pressure and discomfort for the patient. This is a crucial skill for managing various abdominal conditions and can provide significant symptom relief.

Other options mentioned serve different purposes. Pleurisy refers to inflammation of the pleura, the membranes around the lungs. Nephrectomy is a surgical procedure for removing a kidney. Colonoscopy is an endoscopic examination of the colon. None of these procedures are intended for fluid drainage from the abdominal cavity, emphasizing the unique role that paracentesis plays in abdominal care.