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22490 Synovial Fluid, Crystal Analysis

Synovial Fluid, Crystal Analysis
Test Code: SFCRY
Synonyms/Keywords
​​​UA Crystals, Uric Acid Crystals, Pseudogout Crystals
Test Components
​Color, Clarity, Crystals
Specimen Requirements
Specimen Type Preferred Container/Tube Acceptable Container/Tube Specimen Volume Specimen Minimum Volume
(allows for 1 repeat)		 Pediatric Minimum Volume
(no repeat)
Synovial Fluid​ Red Top Tube (RTT)​ Aliquot tube with no preservative​ 1.0 mL​ 0.75 mL​ 0.5 mL​
Collection Processing Instructions
​Store sample refrigerated.  There is no designated storage limitation upon refrigeration.
Specimen Stability Information
Specimen Type Temperature Time
Synovial Fluid​ Ambient​ 24 Hours​
Refrigerated​ ​No limit
Rejection Criteria
Collected in Serum Separator Tubes (SST)
Hyaluronidase added​
Performing Laboratory Information
Performing Location Day(s) Test Performed Analytical Time Methodology/Instrumentation
Weston​ ​Monday through Sunday​ ​Less than 2 hours ​Compensated Polarized Light Microscopy​
​Eau Claire ​Monday through Sunday​ ​Less than 2 hours ​Compensated Polarized Light Microscopy​
Park Falls
 ​Monday through Sunday​ ​Less than 2 hours ​Compensated Polarized Light Microscopy​
Marshfield​ Monday through Sunday​ Less than 2 hours
 Compensated Polarized Light Microscopy​
​Minocqua ​Monday through Sunday​ ​Less than 2 hours ​Compensated Polarized Light Microscopy​
​Neillsville​Monday through Sunday​​Less than 2 hours​Compensated Polarized Light Microscopy​
Test Information
​Results will include specimen source, color, clarity, and crystal analysis.
Reference Range Information
Performing Location Reference Range
All Performing Sites Color: Straw
Clarity: Clear
Crystals: None Seen​
Outreach CPTs
CPT Modifier
(if needed)		 Quantity Description Comments
89060​ ​ ​ ​ ​
Synonyms/Keywords
​​​UA Crystals, Uric Acid Crystals, Pseudogout Crystals
Test Components
​Color, Clarity, Crystals
Ordering Applications
Ordering Application Description
​Centricity ​Synovial Fluid Crystals Only
​Cerner ​Synovial Fluid Crystals Only
If the ordering application you are looking for is not listed, contact your local laboratory for assistance.
Specimen Requirements
Specimen Type Preferred Container/Tube Acceptable Container/Tube Specimen Volume Specimen Minimum Volume
(allows for 1 repeat)		 Pediatric Minimum Volume
(no repeat)
Synovial Fluid​ Red Top Tube (RTT)​ Aliquot tube with no preservative​ 1.0 mL​ 0.75 mL​ 0.5 mL​
Collection Processing
​Store sample refrigerated.  There is no designated storage limitation upon refrigeration.
Specimen Stability Information
Specimen Type Temperature Time
Synovial Fluid​ Ambient​ 24 Hours​
Refrigerated​ ​No limit
Rejection Criteria
Collected in Serum Separator Tubes (SST)
Hyaluronidase added​
Test Components
​Color, Clarity, Crystals
Reference Range Information
Performing Location Reference Range
All Performing Sites Color: Straw
Clarity: Clear
Crystals: None Seen​
For more information visit:
Performing Laboratory Information
Performing Location Day(s) Test Performed Analytical Time Methodology/Instrumentation
Weston​ ​Monday through Sunday​ ​Less than 2 hours ​Compensated Polarized Light Microscopy​
​Eau Claire ​Monday through Sunday​ ​Less than 2 hours ​Compensated Polarized Light Microscopy​
Park Falls
 ​Monday through Sunday​ ​Less than 2 hours ​Compensated Polarized Light Microscopy​
Marshfield​ Monday through Sunday​ Less than 2 hours
 Compensated Polarized Light Microscopy​
​Minocqua ​Monday through Sunday​ ​Less than 2 hours ​Compensated Polarized Light Microscopy​
​Neillsville​Monday through Sunday​​Less than 2 hours​Compensated Polarized Light Microscopy​
For billing questions, see Contacts
Outreach CPTs
CPT Modifier
(if needed)		 Quantity Description Comments
89060​ ​ ​ ​ ​
For most current information refer to the Marshfield Laboratory online reference manual.