Laboratory Test Catalog
Synovasure® Alpha Defensin, NSA
This test CANNOT be ordered as a stand-alone test option.
Description
The Synovasure® Alpha Defensin lab developed test (LDT) for native septic arthritis (NSA) consists of assays for synovial fluid alpha defensin ELISA and Lactate tests. It is intended to be used as an adjunct to aid in the diagnosis of NSA.
Test Components
| Test |
|---|
| Alpha Defensin, synovial fluid |
| Lactate, synovial fluid |
Panels Include In
| Panel |
|---|
| Synovasure® Comprehensive NSA Panel (Go to Panel) |
Synovasure RISC® Panel (Go to Panel) Note: Alpha Defensin for NSA test is only part of the Synovasure RISC® Panel as a reflex for enhanced infection results when WBC count is elevated. Not all specimens are tested for alpha defensin. |
Available in New York State?
No. This test and the panels it is part of are not currently approved for use on patients from within New York state.
Specimen Source(s)
Native joint
Note: Performance on specimens from other anatomic locations is not defined. Non-intraarticular joint fluid will be tested if Zimmer Biomet is participating in a clinical study.
Specimen Type
Synovial Fluid
Required Volume
0.5 mL
Volume by Tube Type*
No Additive Tube: 1.0mL
*Tubes are provided within specimen transportation kits
Specimen Stability
4 days post-aspiration
Storage
Ambient/Room Temperature prior to shipment. If being held overnight or over a weekend, store in refrigeration.
Shipping Materials
All materials needed to package and ship are included within transportation kit. Make sure to retain tracking number from provided FedEx label for tracking purposes
Shipping Guidelines
Monday to Friday
Ship specimen the same day as aspiration
Saturday to Sunday
Place in refrigeration and ship specimen on Monday
Reasons for Specimen Rejection
1. Specimen is outside stability range (i.e. more than 5 days)
2. Specimen is not representative of synovial fluid (i.e. blood, urine, etc.)
3. Specimen is aspirated from a location other than the intra-articular joint space
*Note: Non-synovial fluid or intra-articular joint specimens will be tested if associated with a Zimmer Biomet-approved clinical study.
When submitting a specimen to CD Laboratories for this panel:
- Do not use lavage, contrast or other foreign liquids to aspirate fluid
- Ensure specimen is not overly hemolyzed
- A completed requisition form is required with each specimen
- A barcode label from the specimen transportation kit is required on the top of completed requisition
- For Physician Accounts Only: Patient signature and insurance information are required
Pricing
This test is not available as a stand-alone test option. For pricing for the test panels in which this test is included, please select from the below list:
CPT Codes
| Test | CPT Code |
|---|---|
| Alpha Defensin, Synovial Fluid | 83516 |
| Lactate, Synovial Fluid | 86140 |
Ordering SKU
This test is available utilizing either the Infection Specimen Transportation Kit (00-8888-130-01) or Arthritis Specimen Transportation Kit (00-8888-160-01). If a full Arthritis work-up is desired, utilize the Arthritis Specimen Transportation Kit. For infection only, utilize the Infection Specimen Transportation Kit.
How to Order Kit
Contact your local Zimmer Biomet sales representative
For result or test questions, contact CD Laboratories Customer Service at 888-981-8378 or [email protected].