Specimen Requirements
Title
Lymphocyte Subset Panel/T4 Helper Cells (CD4)
Specimen Requirement
5.0 mL lavender EDTA, whole blood.
Maintain at room temperature. Do not refrigerate. Ship same day as drawn.
Methodology
Flow Cytometry (FC)
Stability
Room Temp: 72 hours, Refrigerated/Frozen: Unacceptable
Reference Range
By Report
Turnaround
2-3 days
Clinical Use
Used to measure CD4+ T cells (CD4) in the blood (absolute CD4 cell count, %CD4, absolute lymphocytes). The CD4+ T-cell (CD4) count is the most valuable indicator of immune status in HIV-infected individuals. This panel can be used to establish a baseline CD4 level and to monitor treatment progress.
Test Code
CD4Q