Questions: Puncture of a joint space to remove fluid is: thoracentesis arthroscopy paracentesis arthrocentesis

The answer is the fourth one: arthrocentesis.

Explanation for each option:

• Thoracentesis: This is a procedure to remove fluid or air from the pleural space (the space between the lungs and the chest wall).
• Arthroscopy: This is a minimally invasive surgical procedure on a joint in which an examination and sometimes treatment of damage is performed using an arthroscope.
• Paracentesis: This is a procedure to remove fluid from the peritoneal cavity (the space within the abdomen).
• Arthrocentesis: This is the correct term for the puncture of a joint space to remove fluid.

Summary: The correct term for the puncture of a joint space to remove fluid is arthrocentesis.