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| Title | CD4/CD8 (T4/T8 HELPER/SUPRESS RATIO) |
| Specimen Requirement | <p>Draw blood in a lavender EDTA tube. Send 4.0mL whole blood (1.0mL minimum) <strong>room temperature</strong>. Ship within 24 hours of collection.</p>
<p><strong>CRITICAL ROOM TEMP</strong></p>
<p><strong>DRAW MONDAY-THURSDAY *ONLY* </strong></p> |
| 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 |
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