Skip to content

Laboratory Test Catalog

Synovasure® Microbial Identification

This test can be ordered as a stand-alone test option.


The Synovasure® Microbial Identification (MID) Test is a qualitative in vitro diagnostic test intended for the early detection of microbial antigen in synovial fluid of patients experiencing joint pain and/or inflammation. The Synovasure® MID Test detects antigen from:

  • Staphylococcus species
  • Candida species
  • Enterococcus species
  • P. acnes 

The test results are intended to be used as an additional test to microbial culture and to detect the presence of an organism in culture negative specimens


Panels Included In

Synovasure® Comprehensive PJI Panel (Go to Panel)
Synovasure® Comprehensive NSA Panel (Go to Panel)
Synovasure RISC® Panel (Go to Panel)


Available in New York State?

No. This test is not available for patients within New York state. In addition, the Synovasure® Comprehensive NSA Panel and Synovasure® RISC Panels are not available within the state. A modified version of the Synovasure® Comprehensive PJI Panel CAN be ordered for patients in the state, but this panel does not include the Synovasure® Microbial Identification test.

Organism Sensitivity Specificity
Staphylococcus species 94.0% 99.0%
Enterococcus species 97.1% 99.5%
Candida species 90.0% 99.6%
C. acnes 93.2% 99.0%

Specimen Source(s)

Periprosthetic joint prior to implant removal (i.e. Hip or Knee). 

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

1.0 mL


Volume by Tube Type*

No Additive Tube: 1.0mL

*Tubes are provided within specimen transportation kits


Specimen Stability

7 days post-aspiration


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

Specimens are rejected for any of the below reasons:

1.  Specimen is outside stability range

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.7

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


$155.00 (effective as of 01/01/2023)


CPT Codes

TestCPT Code
Microbial Identification, Synovasure87449 (x3)

Ordering SKU

This test utilizes the Infection Specimen Transportation Kit (00-8888-130-01). The test is selected using the requisition form provided within the kit as a stand-alone test or as part of one of the test panels.


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]

Download a Sample Report