CD57 + NK Cells, Peripheral Blood by Flow Cytometry
| Sunquest Code: | CD57NK | ||
| Epic Code: | LAB6492 | Epic Name: | CD57 + NK Cells |
| Methodology: | Flow cytometry | ||
| Turnaround Time: | Specimens are sent to reference laboratory Mon-Sat; results are reported within 1-3 days. | ||
| Special Instructions: | Specimens must be assayed within 72 hours of collection. | ||
| Compliance: | This test was developed and its performance characteristics determined by ARUP Laboratories. It has not been cleared or approved by the U.S. Food and Drug Administration. This test was performed in a CLIA certified laboratory and is intended for clinical purposes. |
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Collection Instructions
| Specimen: | Blood |
| Optimal Volume: | 4 mL |
| Minimum\Peds Volume: | 0.5 mL |
| Container: | Purple (EDTA) [Alternate Containers: Green (sodium heparin, no gel)] |
| Causes for Rejection: | Samples greater than 72 hours old. Clotted or hemolyzed specimens. |
Processing and Shipping
| Specimen Processing: | Whole blood. Do not process. |
| Shipping Instructions: | Ship original container at room or refrigerated temperatures. |
| Stability: | Stability: Samples are stable at room or refrigerated temperature for 72 hours. |
| Test Performed at or Referral Lab | Lab Sendouts (ARUP) |
| Referral Lab number: | 2008912 |
Interpretive
| Reference Range: |
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| Use: | This test identifies and quantifies the CD57+/CD3-NK cells. The significant 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. |
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