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HelpEpic Test Code LAB940 Crystal Analysis: Joint Fluid
Performing Location(s)
BMC
Synonyms
crystal identification
Specimen Type
Synovial (Joint) Fluid
Preferred Container
Red top tube
Alternate Container
Sterile collection container
Minumum Volume to Submit for Testing
1.0 mL Joint Fluid
Transportation Needs
Deliver specimen to the laboratory within 1 hour of collection. If not possible see “storage requirements”
Storage Requirements
Refrigerate at 2-6° Celsius, if a delay in transportation to the laboratory is anticipated
Causes for Rejection
Mislabeled or unlabeled specimen
Sample received in any anticoagulant
Insufficient sample for assay
Samples received in syringe with needle attached
Collected in wrong tube
>2 hours at Room Temperature
> 24 hours Refrigerated
Reference Values
| Population | Units | Reference Range |
| All populations | none | None Seen |
Days of Analysis
All
Available STAT
Yes
Includes
Microscopic evaluation of fluid for crystals using polarized light and red compensator. Interpretive report
Additional Information
Additional Information:
Interpretation may require pathologist consult. When this occurs, the consult will also be billed.
Methodology
Polarized light microscopy and birefrigence
CPT Code
89060
Last Updated
13-Apr-18