Lymphocyte subsets: T, B and NK cells
Immunology
Sample and container requirements
EDTA Whole Blood
Minimum volume required
4 mL EDTA blood
Special requirements
none
Patient preparation
none
Sample viability
Lymphocyte phenotyping stability has been validated up to 40 hours post venepuncture. Samples received >40 hours old will not be tested Where sample collection data is unavailable to the laboratory, validity of results is uncertain.
Turnaround time
3 days,
Reference range
Age Dependant
Clinical guidance
Some indications: Primary Immunodeficiency
Notes
Images to go here
This information was last updated on 19 August 2026