Regulatory T Cells
Test Code
FOXP3
Description
Collect
Draw one 10 mL green top tube (sodium or lithium heparin)
Specimen Preparation
Do NOT centrifuge! Keep at room temperature (18-22°C).
Preferred volume: 10 mL whole blood
Pediatric Collection
Minimum volume: 6 mL
Unacceptable Conditions
Frozen, clotted, hemolyzed or centrifuged specimens. Anticoagulants other than heparin. Specimens >24 hrs old.
Storage Transport Temp
Maintain and transport specimens at room temperature (18-22°C).
Ship specimens Priority Overnight via Fed Ex in container sufficiently insulated to avoid temperature extremes (<10°C and >37°C).
Stability
24 hours at room temperature (18-22°C)
Notes
Samples must arrive within 24 hours of draw and are accepted Monday through Thursday.
Performed
Tue-Fri
Methodology
Flow Cytometry
Reported
2-4 days
Department
Immunology Lab - Phenotyping AssaysSynonyms
IPEX syndrome
Reference Interval
2.1 - 10.0% of CD4+ T Cells
CPT Code
88185, 88184 x 2