Sign in →

Test Code LAB10452 CD4/CD8 (T4/T8 Helper/Suppress Ratio)

Important Note

Collect Monday-Thursday ONLY

Department

SEND OUTS

Reference Lab Test Number

CD48

Refer To

Warde Lab

Primary Collection Container

Lavender 4 mL (K3EDTA)

Transport

Whole blood ambient

Preferred Transport Temperature

Ambient

Processing

Send 4.0 mL whole blood.

Ship within 24 hours of collection.

If a sample collected Thursday is not received

by Saturday, 72 hour stability will be exceeded by Monday and testing will be canceled.

Stability

Ambient: 72 hours

Refrigerated: Not Acceptable

Frozen: Not Acceptable

Minimum Testing Volume

1.0 mL

Reference Range

Adult >16 years

T Helper Cell (CD4) 35-66% T Helper Cell (CD4) 443-1471 C/UL T Suppressor Cell (CD8) 9-37% T Suppressor Cell (CD8) 190-832 C/UL T4/T8 Ratio (CD4:CD8) 1.0-3.7 Ratio

<16 years

By report

Methodology

Flow Cytometry

Performed

Monday – Saturday

Reported

4 days

CPT Codes

86360

Unacceptable Conditions

Refrigerated samples.

Frozen samples.

Heparinized samples.

ACD samples.

Clotted specimens.