TY - CHAP M1 - Book, Section TI - Synovial Fluid A1 - Pfennig, Camiron L. A1 - Brown, B. Ethan A2 - Knoop, Kevin J. A2 - Stack, Lawrence B. A2 - Storrow, Alan B. A2 - Thurman, R. Jason Y1 - 2021 N1 - T2 - The Atlas of Emergency Medicine, 5e AB - Synovial fluid normally appears colorless or straw colored (see Fig. 25.55), viscous, and stringy. Arthrocentesis is performed in patients with a joint effusion or suspicion for joint inflammation or infection. Fluid can appear transparent (normal), translucent (mild inflammation), opaque (purulent inflammation), or bloody (traumatic tap, trauma, or bleeding disorders). Synovial fluid is normally viscous due to high levels of hyaluronic acid. These characteristics make a long “string” when a drop of normal fluid is expressed from a syringe. SN - PB - McGraw-Hill CY - New York, NY Y2 - 2024/04/20 UR - accessemergencymedicine.mhmedical.com/content.aspx?aid=1181053094 ER -