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Expected turnaround time for a result, beginning when ARUP has received the specimen.
1-3 days 1-3 days
Reference Interval
Normal range/expected value(s) for a specific disease state. May also include abnormal ranges.
Test Number
Components
Reference Interval
% CD57+CD3- (NK Cells)
1 - 16 %
Abs CD57+CD3- (NK Cells)
21 - 357 cells/uL
Interpretive Data
May include disease information, patient result explanation, recommendations, or details of testing.
This test identifies and quantifies the CD57+/CD3- NK cells. The significance of low CD57+NK values in diagnosing and monitoring chronic Lyme disease is not well established and should be used in conjunction with other diagnostic tests specified in the Centers for Disease Control Lyme Disease case definition.
This test was developed and its performance characteristics determined by ARUP Laboratories. It has not been cleared or approved by the US Food and Drug Administration. This test was performed in a CLIA certified laboratory and is intended for clinical purposes.
Compliance Category
Laboratory Developed Test (LDT)
Note
Additional information related to the test.
Hotline History
N/A
CPT Codes
The American Medical Association Current Procedural Terminology (CPT) codes published in ARUP's Laboratory Test Directory are provided for informational purposes only. The codes reflect our interpretation of CPT coding requirements based upon AMA guidelines published annually. CPT codes are provided only as guidance to assist clients with billing. ARUP strongly recommends that clients confirm CPT codes with their Medicare administrative contractor, as requirements may differ. CPT coding is the sole responsibility of the billing party. ARUP Laboratories assumes no responsibility for billing errors due to reliance on the CPT codes published.
* Component test codes cannot be used to order tests. The information provided here is not sufficient for interface builds; for a complete test mix, please click the sidebar link to access the Interface Map.
Aliases
Other names that describe the test. Synonyms.
CD57+ NK Cells, Peripheral Blood by Flow Cytometry
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