Joint Fluid Exam
| Order Code: | LAB1006 | Order Name: | Joint Fluid Exam |
| Synonyms: | Crystal Examination; Cell Count with Differential Fluid; BFLD; CRYST | ||
| Methodology: | Cell count, differential, and microscopic examination using polarized light. | ||
| CPT Codes: | 89060 x1, 89060 x1, 89050 x1, 89050 x1, 89051 x1, 89051 x1 | ||
| Test Includes: | Joint Fluid Exam, LAB1006 includes: 1) Crystal ID Synovial Fluid - LAB8095 CRYST; and 2) Cell Count with Differential Fluid - LAB210 BFLD | ||
| Turnaround Time: | Performed and reported 24 hours//day. | ||
Collection Instructions
| Specimen: | Synovial Fluid |
| Optimal Volume: | 3 mL |
| Minimum\Peds Volume: | Laboratory will accept 1 mL or less if unable to obtain. Labeled; capped syringe is acceptable when volume is very small. |
| Container: | Plastic leakproof container, sterile Alternate Containers: Purple (EDTA) |
| Collection Instructions: | Deliver to laboratory immediately. |
| Causes for Rejection: | Specimen collected in lithium heparin or gel tubes. |
Processing and Shipping
| Specimen Processing: | Store at refrigerated temperature. |
| Shipping Instructions: | Ship at refrigerated temperature. |
| Test Performed at or Referral Lab | Hematology (CSC Maple Grove, Grand Itasca, Range, Southdale, St. John's, UMMC East Bank, Woodwinds) |
Interpretive
| Reference Range: | Crystal Analysis: No clinically significant crystals seen.
Cell Count and Differential: No reference ranges have been established. This result should be interpreted in the context of the patient's clinical condition and compared to simultaneous measurement in the patient's blood. |
| Use: | Aids in the diagnosis of crystal-induced arthritis and evaluation of cell counts on synovial fluid. |
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