ProPath Test Menu


CD4 (T4) Enumeration


TEST DIRECTORY
Test Name
CD4 (T4) Enumeration
Alternate Names
CD4 lymphocyte count
t4 enumeration (CD4)
t4 flow cytometry
Test Code
CD4T4
SPECIMEN REQUIREMENTS
Supplies for Submission
Lavender Top (1)
Specimen Collection
  • Due to the stability, this test is available only to Dallas-Fort Worth area clients, and samples must reach ProPath on the same day as collection.
  • Call the lab for a STAT pickup. Not available for Friday.
  • Write "ATTN Send outs" on the requisition.
  1. Collect samples on Monday to Thursday only.
  2. Submit a minimum of 5.0 mL whole blood.
Storage Requirements
Critical Room Temperature.
Specimens are stable if stored at room temperature for 2 days. DO NOT refrigerate.
Causes for Rejections
Specimens with the following conditions are not accepted:
  • hemolysis
  • refrigerated
  • frozen
  • heparin samples
GENERAL AND TECHNICAL INFORMATION
Turn Around Time
5 days
CPT Code
86361