II. Technique

  1. Wright's Stain for cell count with differential

III. Labs: Normal Synovial Fluid

  1. Less than 200 White Blood Cells (WBC) per mm3
  2. Polymorphonuclear Leukocytes (PMN) less than <50%

IV. Labs: Non-Inflammatory fluid - 200 - 2000 WBC/mm3

V. Labs: Inflammatory fluid - 2000 - 50,000 WBC/mm3 (mild < 20,000)

VI. Labs: Septic fluid - Over 50,000 WBC/mm3 (especially >100,000, PMNs >75%)

  1. Septic Arthritis until proven otherwise

VII. Reference

  1. Kolba (1984) Prim Care 11:211-8

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Ontology: Synovial fluid cell count - finding (C0729162)

Concepts Laboratory Procedure (T059)
SnomedCT 365713007, 167898006, 145125007, 145122005, 60923009
English Synovial fluid cell count NOS, Finding of synovial fluid cell count, Synovial fluid cell count NOS (procedure), Synovial fluid cell count NOS (finding), Synovial fluid cell count (finding), Cell count of synovial fluid, Synovial fluid cell count, Cell count of synovial fluid (procedure), Finding of synovial fluid cell count (finding), Synovial fluid cell count - finding
Italian Conta cellulare del fluido sinoviale
Japanese 滑液中細胞数, カツエキチュウサイボウスウ
Czech Počet buněk v synoviální tekutině
Hungarian Synovialis folyadék sejtszám
Spanish recuento celular en líquido sinovial, SAI (procedimiento), recuento celular en líquido sinovial, SAI, Synovial fluid cell count NOS, recuento celular en líquido sinovial, SAI (hallazgo), Recuento celular en líquido sinovial, recuento celular del líquido sinovial (procedimiento), recuento celular del líquido sinovial, recuento de células en el líquido sinovial - hallazgo (hallazgo), recuento de células en el líquido sinovial - hallazgo
Dutch synoviaal vocht celtelling
French Numération cellulaire du liquide synovial
Portuguese Contagem de células no líquido sinovial
German Zellzahl in der Synovialfluessigkeit

Ontology: joint fluid leukocytes (C2108586)

Concepts Laboratory Procedure (T059)
English joint fluid leukocytes (lab test), joint fluid leukocytes