Test Details
Methodology
Microscopic and macroscopic examination
Result Turnaround Time
Within 1 day
Turnaround time is defined as the usual number of days from the date of pickup of a specimen for testing to when the result is released to the ordering provider. In some cases, additional time should be allowed for additional confirmatory or additional reflex tests. Testing schedules may vary.
Test Includes
Microscopic examination for RBCs and WBCs, differential, and crystals; macroscopic examination for appearance and viscosity
Use
This test is used to evaluate synovial fluid for the presence of RBCs, WBCs, crystals and for physical appearance.
Specimen Requirements
Specimen
Synovial fluid
Volume
1 mL
Container
Lavender-top (EDTA) tube
Collection Instructions
Follow standard collection procedures.
Stability Requirements
Temperature | Period |
|---|---|
Room temperature | Unstable |
Refrigerated | 2 days (48 hours) |
Frozen | Unstable |
Freeze/thaw cycles | Unstable |
Storage Instructions
Refrigerate. Transport to the laboratory as soon as possible.
Causes for Rejection
Quantity not sufficient for analysis; improper labeling; specimen frozen; specimen more than 48 hours old; gel-barrier tube
LOINC® Map
| Order Code | Order Code Name | Order Loinc | Result Code | Result Code Name | UofM | Result LOINC |
|---|---|---|---|---|---|---|
| 005231 | Cell Ct, Synovial w/Crystals | 005232 | Color, Fluid | 6824-7 | ||
| 005231 | Cell Ct, Synovial w/Crystals | 005233 | Clarity, Fluid | 9335-1 | ||
| 005231 | Cell Ct, Synovial w/Crystals | 005736 | Nucleated Cells, Synovial Fld | cells/uL | 55793-4 | |
| 005231 | Cell Ct, Synovial w/Crystals | 005512 | RBC, Fluid | /uL | 23860-0 | |
| 005231 | Cell Ct, Synovial w/Crystals | 019075 | Neut, Fluid | % | 12238-2 | |
| 005231 | Cell Ct, Synovial w/Crystals | 019091 | Lymphocytes, Fluid | % | 13941-0 | |
| 005231 | Cell Ct, Synovial w/Crystals | 019266 | Macrophages | % | 12230-9 | |
| 005231 | Cell Ct, Synovial w/Crystals | 019463 | Eosinophils, Fluid | % | 12209-3 | |
| 005231 | Cell Ct, Synovial w/Crystals | 019267 | Lining Cells, Synovial | % | 35651-9 | |
| 005231 | Cell Ct, Synovial w/Crystals | 005355 | Crystal,Synovial/Joint Fl | 6825-4 | ||
| 005231 | Cell Ct, Synovial w/Crystals | 019489 | Comments: | 20999-9 | ||
| Order Code | 005231 | |||||
| Order Code Name | Cell Ct, Synovial w/Crystals | |||||
| Order Loinc | ||||||
| Result Code | 005232 | |||||
| Result Code Name | Color, Fluid | |||||
| UofM | ||||||
| Result LOINC | 6824-7 | |||||
| Order Code | 005231 | |||||
| Order Code Name | Cell Ct, Synovial w/Crystals | |||||
| Order Loinc | ||||||
| Result Code | 005233 | |||||
| Result Code Name | Clarity, Fluid | |||||
| UofM | ||||||
| Result LOINC | 9335-1 | |||||
| Order Code | 005231 | |||||
| Order Code Name | Cell Ct, Synovial w/Crystals | |||||
| Order Loinc | ||||||
| Result Code | 005736 | |||||
| Result Code Name | Nucleated Cells, Synovial Fld | |||||
| UofM | cells/uL | |||||
| Result LOINC | 55793-4 | |||||
| Order Code | 005231 | |||||
| Order Code Name | Cell Ct, Synovial w/Crystals | |||||
| Order Loinc | ||||||
| Result Code | 005512 | |||||
| Result Code Name | RBC, Fluid | |||||
| UofM | /uL | |||||
| Result LOINC | 23860-0 | |||||
| Order Code | 005231 | |||||
| Order Code Name | Cell Ct, Synovial w/Crystals | |||||
| Order Loinc | ||||||
| Result Code | 019075 | |||||
| Result Code Name | Neut, Fluid | |||||
| UofM | % | |||||
| Result LOINC | 12238-2 | |||||
| Order Code | 005231 | |||||
| Order Code Name | Cell Ct, Synovial w/Crystals | |||||
| Order Loinc | ||||||
| Result Code | 019091 | |||||
| Result Code Name | Lymphocytes, Fluid | |||||
| UofM | % | |||||
| Result LOINC | 13941-0 | |||||
| Order Code | 005231 | |||||
| Order Code Name | Cell Ct, Synovial w/Crystals | |||||
| Order Loinc | ||||||
| Result Code | 019266 | |||||
| Result Code Name | Macrophages | |||||
| UofM | % | |||||
| Result LOINC | 12230-9 | |||||
| Order Code | 005231 | |||||
| Order Code Name | Cell Ct, Synovial w/Crystals | |||||
| Order Loinc | ||||||
| Result Code | 019463 | |||||
| Result Code Name | Eosinophils, Fluid | |||||
| UofM | % | |||||
| Result LOINC | 12209-3 | |||||
| Order Code | 005231 | |||||
| Order Code Name | Cell Ct, Synovial w/Crystals | |||||
| Order Loinc | ||||||
| Result Code | 019267 | |||||
| Result Code Name | Lining Cells, Synovial | |||||
| UofM | % | |||||
| Result LOINC | 35651-9 | |||||
| Order Code | 005231 | |||||
| Order Code Name | Cell Ct, Synovial w/Crystals | |||||
| Order Loinc | ||||||
| Result Code | 005355 | |||||
| Result Code Name | Crystal,Synovial/Joint Fl | |||||
| UofM | ||||||
| Result LOINC | 6825-4 | |||||
| Order Code | 005231 | |||||
| Order Code Name | Cell Ct, Synovial w/Crystals | |||||
| Order Loinc | ||||||
| Result Code | 019489 | |||||
| Result Code Name | Comments: | |||||
| UofM | ||||||
| Result LOINC | 20999-9 |