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What Is Joint Fluid Aspiration?

By , About.com Guide

Updated April 28, 2013

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Definition: Joint fluid aspiration, also known as arthrocentesis, is a procedure that is performed using a sterile needle to draw joint fluid from a joint. The skin is sterilized before being punctured with the needle and a local anesthetic is used. Once obtained, the joint fluid can be sent to a laboratory for examination.

Pronunciation: joy-nt flu-idd aspir-a-shun
Also Known As: arthrocentesis, joint aspiration
Common Misspellings: joint fluid aspirition
Examples:
The fluid obtained during joint aspiration was sent to the lab for testing.

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