Specimen Requirements

Title

CD4/CD8 (T4/T8 HELPER/SUPRESS RATIO)

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