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What is Joint Fluid Aspiration?

By , About.com Guide

Updated February 01, 2005

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Definition: Joint fluid aspiration is performed using a sterile needle to draw joint fluid from a joint, it is also known as arthrocentesis. The skin is sterilized in the area which will be punctured with the needle and a local anesthetic is used. Once the fluid is drawn it is usually 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 joint aspiration fluid was sent to the lab for testing.
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