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HelpTest Code LAB9410 T-Follicular Helper Cells
Aliases
T-Follicular Helper Cell Subset
Performing Section
Immunology/Flow
Purpose/Principle
Characterization of T follicular helper cell subset by flow cytometry analysis.
Special Collection Notes
No Gel
Specimen Type
Whole Blood:
Purple Top -EDTA
Specimen Volume
Preferred: 3.0 mL
Minimum: 0.5 mL
Processing Instructions
Submit whole blood -DO NOT CENTRIFUGE.
Store and send ambient.
Sample must received into the lab Monday-Friday(before noon). Do not send sample on Friday (after noon), Saturday, Sunday or holidays.
Temperature
Ambient
TAT
48 Hours
Test Components
T Follicular Helper Cells
CPT
88184
88185 X 3
Sample Stability
Ambient: 48 hours
Additional Notes
Specimen will be rejected if clotted.
Test/Batch Schedule
Monday-Friday Noon
Method
Flow Cytometry
Reference Range
0 to 5 Years: 1-17% of CD4 T Cells
5 Years and older: 4-23% of CD4 T Cells