ARUP Test Catalog
ARUP Consult Guide
Lab Tests Online
Lymphocyte Subset Panel 1 - CD4, Absolute Count Only

Mnemonic:    [CD4]
Name:    Lymphocyte Subset Panel 1 - CD4, Absolute Count Only
Specimen:    4 mL whole blood from a Lavender top tube. Specimens must be analyzed within 72 hours of collection in EDTA or within 48 hours of collection in heparin. Some medications may affect immunophenotyping results and should be listed on the patient test request form.

CD4 (ARUP's Lymphocyte Subset Panel 1) is included in T-Cell Subset (ARUP #95950)
Minimum Spec:    0.5 mL
Transport Temp:    Store and transport sample at Room Temperature.
Spec Stability:    Stable 2 days ambient.
Ref Lab/Code:    ARUP 0095854
  Method:    Flow Cytometry
Note:    Samples should be received in the lab no later than noon the day they are collected to ensure they reach the reference lab within sample viability time.
Processing Info:    Do not pour off. Transport in original tube.

If sample will be too old or too close to cut off for testing at ARUP, make arrangements to have testing done at NorDx or Dahl-Chase.