Geisinger Medical Laboratories Test Catalog

Order Display Name: Geisinger Epic Procedure Code Or ID CPT Code:  


Geisinger Epic Procedure Code: LAB2112             Geisinger Epic ID: 7684

Specimen type:
Synovial fluid. Indicate specimen source on label and requisition.
Preferred collection container:
Alternate Collection Container:
6 mL red-top (plain, non-serum separator) tube
Specimen required:
1 mL synovial fluid or tissue.
Special notes:
Non-gel or non-anticoagulated tubes are acceptable; however, clotting is more likely.

Specimen processing instructions:
Do not centrifuge. 
Transport temperature:
Refrigerated (preferred) or room temperature.
Specimen stability:
2 days.
Rejection criteria:
Specimen sent with needle or frozen. Specimens clotted or exceeding stability will be evaluated for specimen integrity.

CPT code(s):
Note: The billing party has sole responsibility for CPT coding.  Any questions regarding coding should be directed to the payer being billed.  The CPT codes provided by GML are based on AMA guidelines and are for informational purposes only.
Test includes:
Crystal analysis, macroscopic examination
Polarizing microscopy and color compensator
Crystal exam, SYNCRY, Identification, Polarizing
Clinical significance:
Identification of crystals is used to diagnosis different clinical disorder such as urate gout (monosodium urate crystal), pseudogout (calcium pyrophosphate dihydrate crystal), apatite gout, oxalate gout associated with renal disease, and cholesterol gout (associated with chronic effusions and rheumatoid arthritis).
Doctoral Director(s:)
Mary Dhesi MD    
Review Date: 01/25/2023

Performing Locations

Geisinger Medical Center

Performing laboratory: Hematology
Technical Lead: Margaret Knowles-Tuchman
Frequency: Daily, all shifts
Performed STAT? No

Geisinger Wyoming Valley Medical Center

Performing laboratory: ATL+
Technical Lead: Jessica Kopeck    
Frequency: Monday-Friday, Day Shift    
Performed STAT? No

Geisinger Lewistown Hospital

Performing laboratory: ATL+
Technical Lead: Melissa Cramer  
Frequency: Daily, all shifts    
Performed STAT?
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