Normal range: Normal intervals for CD4 and CD8 vary with age
Cell count x 109/L
Age CD4 CD8
Neonate 1.5-2.4 1.2-2.0
Infant 1.7-2.8 0.8-1.2
yrs 1-6 1.0-1.8 0.8-1.5
yrs 7-17 0.7-1.1 0.6-0.9
Adult 0.5-1.4 0.2-0.7
Comment: The CD4 antigen is the receptor for the human immunodeficiency virus (HIV). The absolute CD4 count is a criterion for categorizing HIV- related clinical conditions
Sample: EDTA whole blood