Specimen

Whole Blood

Minimum:

20 ml; submit two 10 ml green tops.  Do not use a needle smaller than 
21 gauge.

Delivery Instructions:

Keep at room temperature.  Do not refrigerate.

Reference Range:

Internal control and normal range reported with each sample.

Comments:

Since the assay is run on Tuesday only, the blood must be drawn on 
Tuesday.  Do not centrifuge.  This assay is run using viable 
lymphocytes.  Have floor deliver to Cellular Immunology Lab, VAMC Bldg. 
41, Room 223 or Specimen Control (6240 RCP) within 3 hours of drawing.  
Must be in lab no later than noon.  Test may also be run on Friday, but 
prior arrangements (1-2 day advance notice) are required. Call 
158-7550.  This assay examines the ability of the patient's NK cells to 
kill a standard tumor target.