cd4 count range
1 The CD4 count of an uninfected adult/adolescent who is generally in good health ranges from 500 cells/mm 3 to 1,200 cells/mm 3. 2  A very low CD4 count (less than 200 cells/mm 3) is one of the ways to determine whether a person living with HIV has progressed to stage 3 infection (AIDS). A CD4 count of fewer than 200 cells/mm 3 is one of the qualifications for a diagnosis of stage 3 infection (AIDS). 2  ART is recommended for everyone with HIV, but the urgency to start ART is greater in people with low or rapidly falling CD4 counts.