Crystals, Synovial Fluid Test
The synovial fluid crystals test examines a sample of joint fluid under polarized light microscopy to check for pathologic crystals. Quest also lists it as the Uric Acid Crystals test.
About this test
This test looks for the presence of pathologic crystals in a sample of synovial (joint) fluid. Quest analyzes the 3 mL sample, collected in an EDTA or sodium heparin tube, using microscopy under polarized light, a method that allows different crystal types to be distinguished by how they interact with polarized light.
Quest describes this test as used to rule out pathologic crystals in synovial fluid. The site the fluid was drawn from is recorded alongside the crystal finding as part of the report.
Test details
| Quest code | 4563 |
|---|---|
| Methodology | Microscopy/Polarized Light |
| Sample type | 3 mL synovial fluid |
| Collection | Quest patient service center |
Reference range
None seen
Reference ranges are general guidance. The range printed on your own laboratory report is the one that applies to your result.
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Quest resources
Additional details
What this test looks at
The test examines synovial fluid under polarized light microscopy to check for the presence of pathologic crystals, along with recording the joint site the sample came from. Quest lists this product under names including Crystals, Synovial Fluid and Uric Acid Crystals.
Order online and a physician order is included — no doctor's visit and no insurance needed. Your sample is collected at a Quest Diagnostics patient service center.
Laboratory results should always be interpreted by a licensed clinician who knows your health history. This page is information about a test, not medical advice.
Frequently asked questions
What does this test look for?
It looks for the presence of pathologic crystals in a sample of synovial (joint) fluid, examined under polarized light microscopy.
How is the sample collected?
The test uses a 3 mL sample of synovial fluid, collected in an EDTA or sodium heparin tube, obtained by a clinician from the joint being evaluated.
Do I need to prepare for this test?
No preparation instructions are listed for this test, though people follow any instructions their ordering clinician provides.
Why might this test be ordered?
Quest describes this test as used to rule out pathologic crystals in synovial fluid.
What does a Crystals, Synovial Fluid test cost without insurance?
$249. Celio Health's price is a flat cash price and insurance is never billed: the required physician's order is included.