CD57+ NK Cells, Peripheral Blood by Flow Cytometry
2008912
 
Ordering Recommendation
Mnemonic
CD57
Methodology
Flow Cytometry
Performed
Sun-Sat
Reported
1-3 days
1-3 days
New York DOH Approval Status
Specimens from New York clients will be sent out to a New York DOH approved laboratory.
Specimen Required
Patient Preparation
 
Collect
Lavender (EDTA), pink (K2EDTA), or green (sodium or lithium heparin).  
Specimen Preparation
Transport 4 mL whole blood. (Min: 0.5 mL) Specimens must be analyzed within 72 hours of collection.  
Storage/Transport Temperature
Room temperature. Also acceptable: Refrigerated.  
Unacceptable Conditions
Specimens older than 72 hours. Clotted or hemolyzed specimens.  
Remarks
 
Stability
Ambient: 72 hours; Refrigerated: 72 hours; Frozen: Unacceptable  
Reference Interval
Available Separately Components Reference Interval
No % CD57+/CD3-​ 1-​16 %
No Absolute CD57+/CD3-​ 21-​357 cells/µL
Interpretive Data
This test identifies and quantifies the CD57+/CD3- NK cells. Low values of CD57+ NK cells may be used as an indirect measure of infection severity. Results of this test are not diagnostic. The significance of this test in diagnosing and monitoring chronic Lyme disease is not well established and should only be used in conjunction with other diagnostic tests specified in the Centers for Disease Control Lyme Disease case definition.

See Compliance Statement A: www.aruplab.com/CS
Note
CPT Code(s)
86356 X 2
Components
Component Test Code*Component Chart Name
2008913% CD57+/CD3-
2008914Absolute CD57+/CD3-
* Component test codes cannot be used to order tests. The information provided here is not sufficient for interface builds; for a complete test mix, contact interface support at interface.support@aruplab.com.
Cross References