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CD4 count by age and sex

How the usual range for CD4 count changes with age, as labs print it.

AI-verified against cited sources. Awaiting expert review

The usual range at every age

The reference range labs print, for each age group. Ranges differ a little between labs, so the range on your own report is the one your result is judged against.

Use the left and right arrow keys to step through the age groups. Every range is also in the table below.

Usual range of CD4 count by age, in cells/µL
WhoUsual range
2–4500–2,700 cells/µL
5–9400–2,500 cells/µL
10–15400–2,100 cells/µL
16–64430–1,800 cells/µL
65+490–1,600 cells/µL

Sources: ARUP Laboratories, MedlinePlus (National Library of Medicine), Immunobiology (University of Miami)