Assessing T-cell function in patients on immunosuppressive therapy, including solid-organ transplant patients Evaluating patients suspected of having impairment in cellular immunity Evaluation of T-cell function in patients with primary immunodeficiencies, either cellular (DiGeorge syndrome, T-negative severe combined immunodeficiency: SCID, etc) or combined T- and B-cell immunodeficiencies (T- and B-negative SCID, Wiskott Aldrich syndrome, ataxia telangiectasia, common variable immunodeficiency, among others) where T-cell function may be impaired Evaluation of T-cell function in patients with secondary immunodeficiency, either disease related or iatrogenic Evaluation of recovery of T-cell function and competence following bone marrow transplantation or hematopoietic stem cell transplantation
Specimen Sources
Blood, ArterialBlood, CapillaryBlood, Central LineBlood, Venous
Specimen Types
Blood
Container
Green Top Tube
Collection Instructions
NOTE: DO NOT COLLECT FRIDAY, SATURDAY AND SUNDAYS Container/Tube: Dark Green (Sodium Heparin) Tube Specimen: Less than 3 months: 1 mL 3 months-5 years: 2 mL 6-18 years: 3 mL Greater than 18 years: 10 mL Minimum Volume: 1 mL whole blood Stability: 24 Hrs Room Temperature Collection Instructions: Send specimen is original tube. Do not aliquot.
Transport Instructions
Specimen Stability
24 Hrs Room Temperature
Methodology
Flow Cytometry
Days Performed
Monday through Friday
Performing Laboratory
Mayo Medial Laboratories NOTE: DO NOT COLLECT FRIDAY, SATURDAY AND SUNDAYS
