UW Hospital and Clinics Lab Test Directory
| Test Name: |
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Crystals, Synovial Fluid
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| Test Code(s): |
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SCRY / FCR
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| CPT Code(s): |
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89060
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| Methodology: |
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Polarizing Microscopy
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| Days Performed: |
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Daily, 24 hours.
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| Turnaround Time: |
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Stat: 1 hour.
Routine: 4 hours.
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Specimen Requirements
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| Specimen: |
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Synovial fluid
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| Collection Instructions: |
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Preferred Collection Container: Lavender (liquid EDTA)or Green (sodium heparin only) top tube.
If specimen is not bloody, it can be submitted in a capped syringe (remove needle before submitting to lab).
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| Collection Container: |
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Preferred: See collection instructions.
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| Collection Volume: |
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Preferred: 4 mL
Pediatrics: 0.5 mL
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| Volume Required: |
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Preferred: 0.5 mL
Pediatrics: 0.2 mL
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| Specimen Transport: |
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Transport specimen to UWHC Core Laboratory (B4/220). Transport with coolant pack if coming from outreach location.
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| Unacceptable Criteria: |
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Clotted specimens are not acceptable. Specimens collected in powdered EDTA or lithium heparin tubes are not accepted. These anticoagulant types are associated with crystal formation (i.e., false positive results).
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| Stability: |
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Ambient: 8 hours
Refrigerated: 24 hours
Frozen: Not acceptable
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Interpretation
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Expected Results:
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Absent
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Crystals, Synovial Fluid
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