Specimen Requirements
Title
T4/T8 Helper/Suppression Ratio (CD4/CD8)
Specimen Requirement
Draw blood in a lavender EDTA tube. Send 4.0mL whole blood (1.0mL minimum) room temperature. Ship within 24 hours of collection.
CRITICAL ROOM TEMP
DRAW MONDAY-THURSDAY *ONLY*
Methodology
Flow Cytometry
Stability
ROOM TEMPERATURE: 72 HOURS; REFRIGERATED: UNACCEPTABLE; FROZEN: UNACCEPTABLE
Reference Range
Turnaround
3 Days; Performed Mon-Friday
Clinical Use
Test Code
CD8W