Cell Count and Differential, Body Fluid / Clot Evaluation / Crystal Examination
Same day as tested
85810 / 89050 / 89060
Specimen Collection Details
Synovial fluid in one 4 mL lavender top tube (EDTA) and 4 mL synovial fluid in a red top tube.
Refrigerate. Submit to lab immediately, 24 hour maximum delay. Indicate source.
4 mL EDTA synovial fluid and 4 mL red top tube synovial fluid.
0.5 mL EDTA synovial fluid and 2 mL red top tube synovial fluid.
This test includes cell count and differential, crystal exam, and clot evaluation (viscosity and spontaneous clot). If glucose is desired, collect in a sterile syringe with air expelled, anaerobic transport system, or sterile red top tube (green top tube acceptable, but not preferred). These tests must be ordered separately on the requisition.