Stanford Hospital & Clinics and Lucile Packard Children’s Hospital
Test Name : NK Function Order Code : 11551R
Note: This test is ONLY designed for patients with a strong clinical suspicion for NK cell functional defect with recurrent herpes infection, hemophagocytic lymphohistiocytosis (HLH), or evaluation of immune reconstitution post-transplant or immune therapy. Also - consider quantitative assessment as a first step prior to functional assessment by searching for "unlisted" and filling out “Natural Killer Cell Subset Quantitative – Mayo code QNKS – 1 green-top Sodium Heparin Tube” This is a Sendout/Referred Test and is only offered to registered patients of SHC or LPCH
Specimen Type: Whole Blood
Container Type: Green-top tube (sodium heparin) whole blood
Required Volume: 10 mL
Minimum Volume (Pediatric): 5mL (for non-lymphopenic patients). True minimum volume is dependant on Absolute Lymphocyte Count.
Methodology: Chromium release
Standard Run Times: Mon-Fri
Turnaround Time: 4-5 days
Special Handling: For any PSC locations - see the time of draws cut off in Lab Draw Stations: *For Hoover, Neuroscience , 730 Welch, 770 Welch, Menlo Clinic Crane, Menlo Clinic Middlefield: 2 pm cut off (M-W). *For CCSB, Emeryville, Redwood City, Sunnyvale: 12 noon is the cut off time of draw (M-W). *Specimen must be received at reference lab within 24 hours of collection. CRITICAL AMBIENT TRANSPORT/STORAGE. Call 513-636-4685 with the patient's ALC for a customized volume.
CPT Codes: 86849
SHC EPIC Code: LAB11551R
Causes For Rejection: Frozen, clotted, hemolyzed or centrifuged specimens. Specimens collected in anticoagulants other than Sodium Heparin. Specimens received greater than 24 hours after collection.
Department: Sendouts
Clinical Specialties: Immunology/Allergy
Sendout Lab: Cincinnati Children's Hospital