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HelpTest Code CRY-O Crystals, Other Fluids
Specimen Requirements
| Fasting Required | Specimen Type | Preferred Container/Tube | Acceptable Container/Tube | Specimen Volume | Specimen Minimum Volume (allows for 1 repeat) |
Pediatric Minimum Volume (no repeat) |
|---|---|---|---|---|---|---|
| No | Body Fluid | Red Top Tube (RTT) | Aliquot tube with no preservative |
1.0 mL | 0.75 mL | 0.5 mL |
Collection/Processing Instructions
Collect specimen in a clean container without preservative.
Specimen Stability Information
| Specimen Type | Temperature | Time |
|---|---|---|
| Body Fluid | Ambient | <24 hours |
| Refrigerated | >24 hours |
Rejection Criteria
| Collected in a Serum Separator Tube (SST) |
|---|
| Specimens with hyaluronidase |
Test Information
For synovial fluids, order "Synovial Fluid, Crystal Analysis", test code SFCRY.
For urine specimens, crystal review is routinely performed and as part of an RUA request.
If urine and only crystal review is desired, order MISC and comment Urine for Crystals.
Reference Range Information
| Performing Location | Reference Range |
|---|---|
| Marshfield | Negative for crystals |
Marshfield Labs Performing Department
Marshfield Labs Urinalysis
Performing Information
| Performing Location | Day(s) Test Performed | Analytical Time | Methodology/Instrumentation |
|---|---|---|---|
| Marshfield | Monday through Friday | 1 day | Compensated Polarized Light Microscopy |
CPT Codes
| CPT | Modifier (if needed) |
Quantity | Description | Comments |
|---|---|---|---|---|
| 81015 | 1 |
Outreach CPT Codes
| CPT | Modifier (if needed) |
Quantity | Description | Comments |
|---|---|---|---|---|
| 81015 | 1 |
Ordering Applications
| Ordering Application | Description |
|---|---|
| Cerner | Crystals, Other Fluids |