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Fluid Crystal Identification

Source Fluid
Mnemonic FLCRY
Specimen Requirements

See Body Fluid Collection Guidelines

1 x 4 mL dark green top SODIUM heparin tube, NOT PST.
Sterile container (no additive), red top tube or lavender top spray coated EDTA tube are also acceptable.

2.5 mL synovial fluid

Place fluid into sodium heparin tube IMMEDIATELY following collection. Mix well by inverting tube 6-8 times. 

Specimen Handling
Additional Information Send all crystal orders on non-synovial fluids or synovial fluid sent in unacceptable collection container (e.g. SST, PST, Oxalate) to DSC Hematology.
Testing Location Chemistry-FMC, PLC, RGH, SHC & Hematology-DSC
Testing Frequency

Daily Acute Sites (FMC, PLC, RGH & SHC)
Monday - Friday (days only) Hematology DSC. Specimen must be received in DSC Hematology by 14:00 for same day processing.

Note to ordering physician: Stat requests require review and approval by CLS Medical Staff.  Please contact the pathologist on call at 403-860-1802.

Alternate Name(s) Crystal Identification, Synovial (Joint) Fluid Analysis - Crystals
Reference Interval