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:

Expected Turnaround Time:

1 to 2 Days

Rejection Criteria

Hemolysis; specimen refrigerated or frozen; clotted specimen; contaminated specimen