Natural Killer Cell Surface Antigen
Test ID:
705231
CPT code:
705231
Clinical Use:
Determine levels of natural killer cells in circulation; monitor immune stimulation therapy
Test Information:
Natural killer (NK) cells are large granular lymphocytes that mediate MHC-unrestricted cytotoxicity against virus-infected and malignant cells and manufacture a number of cytokines following stimulation of the immune system.
Specimen Type:
Whole blood
Requested Volume:
Fill tube(s) to capacity
Container Type:
Lavender-top (EDTA) tube and yellow-top (ACD-A) or (ACD-B) tube
Collection:
Invert tube 8 to 10 times immediately after collection. To preserve cellular viability, collect specimen so it will arrive in the laboratory within 48 hours of collection. Indicate date and time of venipuncture on the tube(s) and on the test request form.
Storage Instructions:
Maintain specimen at room temperature
Stability Requirements:
Temperature |
Period |
---|---|
Room temperature |
2 days |
Refrigerated |
Unstable |
Frozen |
Unstable |
Freeze/thaw cycles |
Unstable |
Rejection Criteria
Hemolysis; specimen refrigerated or frozen; clotted specimen; contaminated specimen
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